Archive
5th of April 2017
Chemistry
Q:

what is the symbol of 20 to 30 elements

Pankaj Rao - Junior - Class I

Wednesday, April 05, 2017 at 18:05:PM

A:

The symbol for 2O = O2

The symbol for 3O = O3

Wednesday, April 05, 2017 at 18:06:PM