Question

Atomicity of K2Cr2O7

Answer 1

2+2+7
=11
it is a polyatomic ion

Answer 2

heya !!


here is your answer⬇️⬇️


Atomicity of K2Cr207 is 11.

2 atoms of potassium

2 atoms of chromium

7 atoms of oxgyen


so , when we add those all we get 11.


hope my answer helps you ❤