Mass 1 + %abundance of first isotope + Mass 2 + %abundance of second isotope
/ 100
This is RAM.
This was an answer i found on google from Nasa
How an atom reacts chemically depends on how willing it is to share electrons with others.
It’s electrons
there are 8 moon phases.
They are - First quarter, waxing crescent, new, waning crescent, third quarter, Waning gibbous, full, and waxing gibbous