# Problem: Place the following in order of increasing atomic radius. a) O &lt; Br&lt; As b) As &lt; Br&lt;  O c) O &lt; As &lt; Br d) As &lt; O &lt; Br e) Br &lt; As &lt; O

###### FREE Expert Solution

We’re being asked to identify the element that has the smallest atomic radius.

Atomic radius represents the distance from the nucleus to the outer shell of an element.

Trend of atomic radius in the periodic table:

decreases going from left to right of a period

increases going down a group

86% (462 ratings) ###### Problem Details

Place the following in order of increasing atomic radius.

a) O < Br< As

b) As < Br<  O

c) O < As < Br

d) As < O < Br

e) Br < As < O

Frequently Asked Questions

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Periodic Trend: Atomic Radius concept. You can view video lessons to learn Periodic Trend: Atomic Radius. Or if you need more Periodic Trend: Atomic Radius practice, you can also practice Periodic Trend: Atomic Radius practice problems.