Question

In XY, Y- ions have ccp arrangement and X3+
ions are present in octahderal voids. The fraction
of total number of voids occupied is
(1) 1/3
(2) 1/9
(3) 1/6
(4) 1/12
​

Answer 1

Answer: mnemonics for periodic table till 20

Explanation:

Hi hello little Betty becomes Charlie's number one friend neighbor natty Maggi always sings perfect songs climbing around kind captain.

Hi -hydrogen

Hello-hellium

And so on.........