Atomic mass is determined by the number of protons plus the number of neutrons
The answer is C
because Lithium and sodium belong to the same column.
Answer: D.
Explanation: Members of the same species do not have the same number of cells. Think differences in height or weight. They do not have identical traits. Think siblings. They cannot create different species. Two wolves cannot make a coyote.
Yes i bleve that during diffsion molicules move.
