Question

Explain the trend as you move across a row of the periodic table for each of the following atomic

properties using your understanding of effective nuclear charge.


a. Atomic radius

b. Ionization energy/electronegativity

Answer 1

Answer(s):

a) atomic radius decreases when moving across a period and increased when going down a group.

b) ionization energy increases when moving from left to right across and element period.

Vocab explanations:
groups: The columns of the periodic table are called groups.
periods: The horizontal rows are called periods.