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Periodic Trends

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Wize University Chemistry Textbook > Periodic Table Trends

Summary of Periodic Table Trends

5 Activities

Which statement about periodic properties is always true?

A. Electronegativity is defined as the desire an atom has for an electron.

B. High Electron affinity corresponds to a small exothermic electron attachment enthalpy.

C. Increasing effective nuclear charge means we have more protons screening the nucleus.

D. The further away an electron is from the nucleus the lower the nuclear charge.

E. None of the above is always true.
More Summary of Periodic Table Trends Questions:
Practice: Periodic Trends
1. Arrange the following elements in order of decreasing metallic character: Sr, N, Si, P, Ga, Al
2. Compare the 3rd IE of Ca, Sr and Y.
3. Na+ has ionic radius 102 pm and Li has atomic radius 182 pm. Explain.
Periodic Trends: Z Effective
Which of the following periodic properties increases with the increase in effective nuclear charge across a period?
i. Ionization energy
ii. Electron affinity
Periodic Trends
Which of the following statements is correct about chlorine and phosphorus atoms?
A. The electron affinity of a chlorine atom is smaller than that of a phosphorus atom due to its smaller radius.
B. A chloride anion has higher electron affinity than a neutral chlorine atom.
Periodic Trends: Electronegativity
Choose the true statement:
Periodic Trends: Practice
Which of the choices below correctly identifies the relative size, electron affinity, and ionization energy of ground-state Cs, H, and N atoms?