Put the metal with the non-metal and use the charges to figure it out
862^-10 my friend this is the answer
The one in the middle since when ur going down it’s more quicker anc faster .
It is defined as the amount of a substance that contains as many particles as there are atoms in 12 grams of pure carbon-12. So, 1 molecule contains 6.022×10^23 elementary entities of the substance.
Hope that helps
From,
RAM=element×its relative abudance/total abudance
=((107×13)+(12×109))/25
The answer is=107.96
