Protons and neutrons have most of the mass but occupy very little of the volume of the atom.
The answer is B
If one circuit fails, it is most likely that all the components in the circuit will fail.
Answer:
It is reactive because it has to gain an electron to have a full outermost energy level.
Explanation:
The electron configuration of oxygen is 1s2,2s2 2p4.
Oxygen is in group six in the periodic table so it has six electrons in its valence shell. This means that it needs to gain two electrons to obey the octet rule and have a full outer shell of electrons (eight).
Ca +2
At -1
In +3
Sr +2
Ra +2
Fr +1
Ba +2
As -3