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Which of the following pairs of species are isoelectronic? (Select all that app…

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Wize University Chemistry Textbook > Atoms, Ions, & Isotopes

Atomic Structure

3 Activities

Wize University Chemistry Textbook > Quantum Numbers and Electron Configurations

Electron Configurations for Ions

5 Activities

Wize University Chemistry Textbook > Quantum Numbers and Electron Configurations

Electronic Configuration for Atoms

8 Activities

Which of the following pairs of species are isoelectronic? (Select all that apply)
More Atomic Structure Questions:
Atomic Structure
Complete the following blanks in the table. Elements can be neutral atoms or charged ions. You may use the Periodic Table provided.
Bohr model: Energy
In a Hydrogen atom, for a transition to occur from n = 3 to n = 2, would energy need to be absorbed or emitted?
The Atom
1. Match the following definitions with the correct term.
The Atom
For germanium-73 (charge = 3+), there are
32
protons,
41
neutrons and
29
electrons.
The Atom
3. For zinc-65 (charge = 2+), there are
30
protons,
35
neutrons and
28
electrons.
Atom: Nuclear Notation
Nuclear Notation - Practice Question
How many protons, neutrons and electrons are there in 75As3-?
Answer: There are
33
protons,
42
neutrons and
36
electrons.
Elements: Atomic vs Mass Number
An atom contains 11 protons and 12 neutrons in its nucleus. Which of the following statements is/are correct?
(i) This atom has an atomic number of 12. (ii) Its mass number is 23. (iii) This atom has 12 electrons.
Elements: Atomic Number
Each element in the periodic table is assigned a number called the atomic number. This is equal to:
How many protons (p), neutrons (n) and electrons (e) are present in 80200Hg2+{\small _{80}^{200}Hg^{2+}}?
Of the following, which contains the greatest amount of neutrons?
How many protons does 12C have?
Match the subatomic particle to its mass and charge.
An element is known to have a mass number of 27.
"The Periodic Table", image retrieved from Chemistry 2e (https://d3bxy9euw4e147.cloudfront.net/oscms-prodcms/media/documents/Chemistry2e-OP_QCzV58S.pdf) by Flowers, P et al., is licensed under CC BY.
Elements: Atomic Mass
What is the total mass of a CO molecule? Given the following:
"The Periodic Table", image retrieved from Chemistry 2e (https://d3bxy9euw4e147.cloudfront.net/oscms-prodcms/media/documents/Chemistry2e-OP_QCzV58S.pdf) by Flowers, P et al., is licensed under CC BY.
The symbol for mass number is A)
A
. The symbol for atomic number is B)
Z
(Note: Use upper case letters)
A subatomic particle has a mass of 0.00054858 amu. Which particle is it?
Oxygen has a mass number of 16 amu. How many electrons does it have?
Definitions
Connect the term with the definition
Atom: Isotopes and Atomic Weight
An ion with a -2 charge has a mass number of 52 and contains 26 electrons. Which element is this ion? Specify the isotope as well.
Atom: Atomic Structure and Weight
1) How many protons does 12C have?
2) How many neutrons does 57Fe have?
3) How many protons does 13C have?
How many protons, neutrons and electrons are in a 113In atom?
How many protons, neutrons and electrons are in a 90Sr atom?
How many protons, neutrons and electrons are in a 57Fe2+ cation?
Atom: Number of Protons, Electrons, Neutrons
Number of Protons, Electrons, & Neutrons
Example:
How many protons, electrons, and neutrons does Sr2+ have?
How many neutrons does 57Fe have?
How many protons does 13C have?
Atomic structure: Practice
Complete the following blanks in the table. Elements can be neutral atoms or charged ions. You may use the Periodic Table provided.
Elements: Isotopes
Which of the following species has an isotope with a mass number of 42, 18 electrons, and an overall charge of 2+?
Atomic Structure: Practice
Complete the following blanks in the table. Elements can be neutral atoms or charged ions. You may use the Periodic Table provided.
CHEM 1011 (Dalhousie) - The Atom
Fill-out the table below (to input the atom/ion column, zinc-65 (charge = 2+), for example, would be inputted in the following format: Zn-65 (2+). If neutral, input: Zn-65).
More Electron Configurations for Ions Questions:
Configuration
The the electron configuration for Cl- is 1s2 2s2 2p6 3s2 3p6
Which element is Cl- isoelectronic with?
Atom: Electronic Configuration
Write the electronic configuration for the following species?
N+
Practice: Electronic Configuration
Write the electronic configurations of the following species:
Co3+, Ni2+, Ni4+, Bi3+, Bi5+, As in Na3As
Electronic Configuration
How many electrons in Cr+ satisfy the following condition:
a. l = 1, ms = +1/2
b. l = 2, ms = ± 1/2
Write the electronic configuration of the following species, and label them as D diamagnetic or P paramagnetic
Cr2+
Write the electronic configuration for the following species?
F-
Elements: Abbreviated Electronic Configuration of Ions
Determine the abbreviated electronic configuration and magnetism of the following ions:
a) Ni2+ b) O2- c) Al2+
Make sure to include no spaces in your abbreviated electronic configurations (e.g. [Ne]3s2 for magnesium).
Electronic Configuration
Determine the abbreviated electronic configuration for the following atoms/ions.
a) P
b) Br-
Atom: Electronic Configuration
Determine which 2+ cation would be described by the following electronic configurations (enter your answer as: E2+. For example, if your answer was the 2+ cation of calcium, enter as: Ca2+).
Atom: Electronic Configuration
Give the full electronic configurations of the following atoms/ions.
Atom: Electronic Configuration
The electron configuration for a ground state Fe2+ ion is:
Atom: Electronic Configuration
Identify the ion that has the following electron configuration.
1s22s22p63s23p63d9
Atom: Electronic configuration
a) What is the electron configuration for Cl-?
b) Which element is Cl- isoelectronic with?
What do the following have in common? 20Ne, 19F- & 24Mg2+
Atom: Electronic Configuration
Write the condensed electron configuration for ground state Cr and then write the configurations for
Cr3+ and Cr6+
a) Cr b) Cr3+ c) Cr6+
Write the condensed electron configuration for Ti2+.
Atom: Electronic Configuration
Which of the following pairs of ions is a pair of isoelectric ions?
Atom: Electronic Configuration
Which of the following pairs of ions are isoelectronic?
Pedicted ground state electron configuration for the doubly charged ion of tungsten (W2+) is?
Atom: Electron Configuration
Write the electronic configuration of the following species, and label them as D diamagnetic or P paramagnetic
a) Sc2+
b) Cr2+
Atom: Electronic Configuration
For each of the elements listed in the first column (a-e) choose the electron configuration from the second column (f-j) which corresponds to that species ground state electron configuration. Note: you only need to write the letter which corresponds (ie. f) not the whole electron configuration.
a) Se f) [Ar]4s23d7
b) Ca2+ g) [Ar]4s23d104p4
Atom: Electronic Configuration
Which of the following species are isoelectronic with Si2+ ?
Atom: Electronic Configurations
Which of the following electron configurations is incorrect?
Identifying neutral elements from electron configurations
What neutral element is represented in the example below?
1s22s22p63s23p51s^2 2s^22p^63s^23p^5became [Ne]3s23p5 [Ne]3s^23p^5
Atom: Electronic configuration
The ground state electronic configuration for Cr3+ is
Atom: Electronic Configuration
Identify the isoelectronic pair among following.
A: Li+ and Be+
B: P3- and N3-
Identify the ion or atom with the ground state electron configuration 1s22s22p63s23p64s13d5
Rhodium is a very useful metal for catalyzing organic reactions. In these catalytic cycles rhodium often moves between the Rh(I) and Rh(III) oxidation state. What is the electron configuration of Rh+?
Elements: Electron Configuration of Ions
For which of the atom/ions below, is the given electron configuration correct? (select all that apply)
Atom: Electronic Configuration and Magnetism
Write the electronic configuration of the following species, and label them as D diamagnetic or P paramagnetic
Ni2-
Configuration
a) What is the electron configuration for Cl-?
b) Which element is Cl- isoelectronic with?
Atom: Electronic Configuration
Write the electronic configuration for the following species?
N+
Atom: Electronic configuration
What is the electron configuration of Ge2+\text{Ge}^{2+} ?
Atom: Electronic configuration
The ground state electronic configuration for Se3+ is
Atom: Electronic Configuration and Magnetism
Write the electronic configuration of the following species, and label them as D diamagnetic or P paramagnetic
Cr2+
Atom: Electronic Configurations
Write the electronic configuration for the following species?
F-
Quantum Model: Stable Electron Configurations
Stable electron configurations are likely to contain:
Atom: Electronic configuration
Write the electronic configuration for the following species?
Ge-
The white silver metal known as platinum (Z=78), weighs almost twice as much as gold and is the heaviest of the precious metals. Since it is so dense and resistant to corrosion, it used in a variety of materials including weapons, aeronautical instruments, and wedding rings.
Write the electronic configuration for the following species?
Ge-
Atom: Electronic configuration
Given the ground-state electronic configuration
[Ar] 4s23d3
1. What is the neutral atom with this electronic configuration?
The ground state electronic configuration for Ti3+ is
More Electronic Configuration for Atoms Questions:
Atom: Electron Configuration
The ground state electronic configuration for Cr is
Cr
Quantum Model: Stable Electron Configurations
Stable electron configurations are likely to contain:
1s22s22p63s23p51s^2 2s^22p^63s^23p^5or [Ne]3s23p5 [Ne]3s^23p^5
What neutral element is represented in the above?
Electronic configuration
What is the electronic configuration of the synthesized halogen?
Electronic Structure
Complete the electronic configurations of arsenic and manganese to answer the following questions.
Electronic Configuration
Fill the table below on valence electronic configuration.
Electronic Configuration
Determine the abbreviated electronic configuration for the following atoms/ions.
a) P
b) Br-
Atomic Structure: Core and Valence Electrons
For a vanadium atom, what are the number of core and valence electrons?
Electronic Configuration
Fill the table below on valence electronic configuration.
Atom: Electronic Configuration
Determine which element will have the following electronic configurations.
Electronic Configuration
Determine the abbreviated electronic configuration for the following atoms/ions.
Atom: Electronic Configuration
Give the full electronic configurations of the following atoms/ions.
Atom: Electronic Configurarion
What is the ground state electronic configuration of Indium?
Atom: Electronic Configuration
Which electron configuration is INCORRECT for the ground state atom listed?
Quantum. model: Electronic Configuration
A gold (Au) atom has how many electrons with the quantum numbers n=4, ml=-3?
Quantum Model: Electronic Configuration
Krypton (Kr) atom has how many electrons with the quantum numbers n=3, l=2?
Atom: Electronic Configuration
Fill in the blanks using neutral atoms from the 4th period. Note there may be more than one answer.
____________ has a complete 3d shell
Atom: Electronic Configuration
Fill in the blanks using neutral atoms from the 4th period. Note there may be more than one answer.
A)
As
has a half filled 4p shell
B)
Cr
has 6 unpaired electrons
Atom: Electronic configuration
The ground state electronic configuration for Ti is
What is the condensed electronic configuration for each of the following? (note: don't leave any spaces in your answer)
"The Periodic Table", image retrieved from Chemistry 2e (https://d3bxy9euw4e147.cloudfront.net/oscms-prodcms/media/documents/Chemistry2e-OP_QCzV58S.pdf) by Flowers, P et al., is licensed under CC BY.
Atom: Electronic Configuration
Write the condensed electron configuration for ground state Cr and then write the configurations for
Cr3+ and Cr6+
a) Cr b) Cr3+ c) Cr6+
Write the condensed electron configuration for Mo.
Write the condensed electron configuration for titanium (Ti).
Write the condensed electron configuration for magnesium.
Write the electron configuration for sulphur.
Atom: Electronic Configuration
Identify the following atom or ion and decide whether it is in a ground or excited state
Z = 25 electronic configuration : [Ar]4s13d5[Ar]4s^13d^5
Atom: Electronic Configuration
Which of the following is the correct condensed electronic configuration for Zn?
Aufbau Principle
The Aufbau Principle states that:
Pauli Exclusion Principle
The Pauli Exclusion principle states:
Electronic Configuration
The ground state electronic configuration for At is
Atom: Electronic Configuration
Which of the following electronic configurations is not possible?
"The Periodic Table", image retrieved from Chemistry 2e (https://d3bxy9euw4e147.cloudfront.net/oscms-prodcms/media/documents/Chemistry2e-OP_QCzV58S.pdf) by Flowers, P et al., is licensed under CC BY.
Elements: Electronic configuration
What is the full electronic configuration for Ag?
"The Periodic Table", image retrieved from Chemistry 2e (https://d3bxy9euw4e147.cloudfront.net/oscms-prodcms/media/documents/Chemistry2e-OP_QCzV58S.pdf) by Flowers, P et al., is licensed under CC BY.
A series of electron configurations are shown below for neutral species. Which is the most likely to form a stable +1 cation?
Atom: Electronic Configuration
For each of the elements listed in the first column (a-e) choose the electron configuration from the second column (f-j) which corresponds to that species ground state electron configuration. Note: you only need to write the letter which corresponds (ie. f) not the whole electron configuration.
a) Se f) [Ar]4s23d7
b) Ca2+ g) [Ar]4s23d104p4
The correct ground state elctron configuration for V is:
Atom: Electronic Configuration
What is the electron configuration for ground state sulfur?
Atom: Electronic Configurations
Which of the following electron configurations is incorrect?
Atom: Electronic Configuration
Which rule of quantum chemistry states that no two electrons can have identical quantum numbers?
Identifying neutral elements from electron configurations
What neutral element is represented in the example below?
1s22s22p63s23p51s^2 2s^22p^63s^23p^5became [Ne]3s23p5 [Ne]3s^23p^5
Electron Configuration: Astatine
The ground state electronic configuration for At is
Atom: Electron Configuration
The ground state electronic configuration for Cr is
Cr
Elements: Electron Configuration of Oxygen
Write the complete electron configuration for oxygen.
Identify the ion or atom with the ground state electron configuration 1s22s22p63s23p64s13d5
Which of the following statements about the ground state electron configuration of Kr is INCORRECT?
Atoms: Electronic Configuration
Which of the representations for the arrangement of electrons in the ground-state atoms below is incorrect?
Atom: Electronic configuration
Which of the following orbital diagrams shows a valid ground state electron configuration for an uncharged atom?
Quantum model: Electron configuration
a) What is the full ground state electron configuration (spdf notation) of Al?
b) Draw the energy level diagram for Al.
c) Modify the energy diagram above to show the excited state that required the smallest amount of energy to move the highest energy valence electron to another orbital.
Quantum model: Ground and Excited States
In the energy diagram:
a) Identify all subshells by circling them.
b) Place the name of each subshell next to your circle.
Atom: Electronic Configuration
Which of the following statements is correct for a non-hydrogen atom?
Elements: Electron Configuration of Ions
For which of the atom/ions below, is the given electron configuration correct? (select all that apply)
Which of the following gives a correct valence electron configuration for an atom of chromium?
i. [Ar] 4s13d5
ii. [Ar] 4s23d4
Atom: Electronic Configuration
1s22s22p63s23p51s^2 2s^22p^63s^23p^5or [Ne]3s23p5 [Ne]3s^23p^5
What neutral element is represented in the above?
Atom: Electronic configuration
The electron configuration for element X is [Ne]3s2 3p5. The formula of the most probable compound that X will form with Ca is:
Atom: Electronic Configuration
How many electrons are found in the 2p subshell of ground state Al\text{Al}?
Atoms: Electronic Configuration
Which one of the following simple, shorthand, ground state electron configurations is incorrect for the elements given?
Atom: Electronic configuration
Given the ground-state electronic configuration
[Ar] 4s23d3
1. What is the neutral atom with this electronic configuration?
Atom: Electronic Configuration
Write the electronic configuration for the following species?
N+
Atom: Electronic configuration
Given the ground-state electronic configuration
[Ar] 4s23d3
1. What is the neutral atom with this electronic configuration?