Choose the best answer to the following statement.

Question

The trend for atomic radius in question 3 is due to:
(1 point)
the shielding effect of the energy levels to the nucleus.
increasing electronegativity of the atoms.
the increasing nuclear charge without adding energy levels.

Answer 1

The best answer to the statement regarding the trend for atomic radius is:

the increasing nuclear charge without adding energy levels.

This is because as you move across a period in the periodic table, the atomic radius decreases due to the increased nuclear charge attracting the electrons more strongly, while the number of energy levels remains the same.