Not sure what you are asking. I have two possible answers though...
It could either be more negatively charged, or valence electrons.
The more away from the nucleus a electron is, the more negatively charged it is.
The electrons on the outermost electron shell is valence electrons.
Again, I don't know what you were asking, but one of these answers may be correct.
So multiply number of moles x number of atoms/mole = 1.8066 x 10^24 atoms of H2. One mole of any gas at STP has a volume of 22.4 L. So first determine the number of moles of gas you have.
for example do 7
![7.5 \div 22.4](https://tex.z-dn.net/?f=7.5%20%5Cdiv%2022.4)
that 's what I think
the answer is A. I (iodine)
no worries
Sand only bc the salt dissolved and sand doesn't