Answer:
An element's location in the periodic table is largely dependent on its electrons; the number of valence shell electrons determines its group, and the type of orbital in which the valence electrons lie in determines the element's block.
Explanation:
hope that helps!!!!!!!!
Answer:
The answer is B
Explanation:
It is the only answer that actually makes sense
Answer:
It only allow certain material to enter the cell
A theory in science is a remark on what happened
