Arrange the following in order of increasing ionic radius? 1.Ca2+,P3+,Cl-.

1 Answer
Jamen N.
Mar 17, 2018

Cl^(-), P^(3+), Ca^(2+)

Explanation:

Ionic radius increases from top to bottom and decreases from left to right of the periodic table. Since calcium, phosphorus, and chlorine are all in period 2, the order of increasing ionic radius is Cl^(-), P^(3+), Ca^(2+)

The radii, by the way, are:
Ca^(2+): 231pm
P^(3+): 195pm
Cl^(-): 175pm

(Source: a quick google search:
https://www.google.com/search?q=ionic+radius+of+ca&rlz=1CADEAC_enUS757US758&oq=ionic+radius+of+ca&aqs=chrome..69i57j69i60j0l4.3962j0j7&sourceid=chrome&ie=UTF-8&safe=active&ssui=on)

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