Which statement describes a periodic trend of atomic radius?

O

A. It tends to decrease from left to right across a period.

O

B. It remains the same within a period.

O

c. It remains the same within a group.

O

D. It tends to decrease from top to bottom of a group.

Question

Chemistry

Rayne

12 December, 00:23

Which statement describes a periodic trend of atomic radius?

O

A. It tends to decrease from left to right across a period.

O

B. It remains the same within a period.

O

c. It remains the same within a group.

O

D. It tends to decrease from top to bottom of a group.

+2

Answers (1)

Know the Answer?

Ruth · Answer 1

Answer:A. It tends to decrease from left to right across a period

Explanation: This trend is caused by the increase number of protons in an atoms nucleus when moving across a period. The protons pull the electrons towards the nucleus causing the atomic radii to shrink and gets smaller or also called as electron shielding.

Which statement describes a periodic trend of atomic radius?OA. It tends to decrease from left to right across a period.OB. It remains the same within a period.Oc. It remains the same within a group.OD. It tends to decrease from top to bottom of a group.

Which statement describes a periodic trend of atomic radius?

O

A. It tends to decrease from left to right across a period.

O

B. It remains the same within a period.

O

c. It remains the same within a group.

O

D. It tends to decrease from top to bottom of a group.