Which of the following arrangements is in decreasing order of atomic radius?

Dudeee

5 years ago

The ans is C bcos atomic radius decreases across the period

123Ames

1 year ago

The atomic radius decreases across the period due to an increase in the nuclear charge

Award0001

2 years ago

wdf
across the period as there is successive addition of elections and protons to the same valence shell, there is increase in nuclear charge and subsequent decrease in atomic radius

Chi4sure

2 years ago

The answer is C because atomic radius decreases across a period and increases down a group.

The reason it decreases across a period is because the more electrons are added to the same shell the more protons are added to the nucleus and the more protons are added to the nucleus the higher the nuclear charge and the higher the nuclear charge the higher the force of attraction of the nucleus ,the force of attraction of the nucleus draws the outer electrons/shell closer to the nucleus so the more the force of attraction the closer the outer electrons/shell will be to the nucleus.

Note that atomic radius is the distance between the nucleus and the outermost shell of an atom

tomi_tee

6 years ago

why is the answer C