I'm not sure if what this question is asking but ill be assuming that the average molecular mass is required. An assuming that the abundance of each isotope is 50% the average molecular mass is 69.82 amu.
The closest shell (n = 1) can contain a maximum of 2 electrons.
Answer:
theirs a $50 tax with the income hes making
Explanation:
The second and first one but if it isn’t 2 choices then 1
Answer:
it is good for thermoelectric power plant cooling
it means that there is a lot of salt in the water
Someone would remove salt from water to be able to drink it
lastly, salt can be removed from water with reverse osmosis systems