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Atomic Structure: Core and Valence Electrons
Related Topics
Wize University Chemistry Textbook > Quantum Numbers and Electron Configurations
Electronic Configuration for Atoms
8 Activities
For a vanadium atom, what are the number of core and valence electrons?
Core electrons
Valence electrons
I don't know
Check Submission
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:
1
s
2
2
s
2
2
p
6
3
s
2
3
p
5
1s^2 2s^22p^63s^23p^5
1
s
2
2
s
2
2
p
6
3
s
2
3
p
5
or
[
N
e
]
3
s
2
3
p
5
[Ne]3s^23p^5
[
N
e
]
3
s
2
3
p
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
-
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
Cr
3+
and Cr
6+
a) Cr b) Cr
3+
c) Cr
6+
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 :
[
A
r
]
4
s
1
3
d
5
[Ar]4s^13d^5
[
A
r
]
4
s
1
3
d
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]4s
2
3d
7
b) Ca
2+
g) [Ar]4s
2
3d
10
4p
4
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?
1
s
2
2
s
2
2
p
6
3
s
2
3
p
5
1s^2 2s^22p^63s^23p^5
1
s
2
2
s
2
2
p
6
3
s
2
3
p
5
became
[
N
e
]
3
s
2
3
p
5
[Ne]3s^23p^5
[
N
e
]
3
s
2
3
p
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 1s
2
2s
2
2p
6
3s
2
3p
6
4s
1
3d
5
Which of the following pairs of species are isoelectronic? (Select all that apply)
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] 4s
1
3d
5
ii. [Ar] 4s
2
3d
4
Atom: Electronic Configuration
1
s
2
2
s
2
2
p
6
3
s
2
3
p
5
1s^2 2s^22p^63s^23p^5
1
s
2
2
s
2
2
p
6
3
s
2
3
p
5
or
[
N
e
]
3
s
2
3
p
5
[Ne]3s^23p^5
[
N
e
]
3
s
2
3
p
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}
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] 4
s
2
3d
3
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] 4
s
2
3d
3
1. What is the neutral atom with this electronic configuration?