Answer:
B
Explanation:
I hope it helps you good luck
Answer:
the answer should be A. the sum of all forces acting on an object
Explanation:
There are 18 protons and electrons and 22 neutrons in the atom
Row or periods have in common is the valence electron count. The valence electron count goes up as you move across the periodic table. Also atomic size gets smaller as you move from left to right
