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).
Answer: Mixing vinegar and baking soda initiates a chemical reaction that produces carbon dioxide and water.
Explanation:
What is the element with 7 protons? They probably also have 7 neutrons. Just a ball park figure guess.
