Answer i have 15 mins. which best compares the gravitational force and the strong force?

both are attractive and repulsive.

both are attractive only.

both are weaker than the electromagnetic force.

both are stronger than the electromagnetic force.

B

Explanation:

Gravity is the attraction between two objects that have mass or energy,

Strong force binds the fundamental particles of matter together to form larger particles. It holds together the quarks that make up protons and neutrons, and part of the strong force also keeps the protons and neutrons of an atom's nucleus together.

14,16 18 reacts with group

answer:

the answer is 6 valence electrons.

explanation:

valence is the # of electrons on the outer most shell of an atom.

oxygen has 6.

although, the valency of oxygen is 2, because it only needs to make 2 covalent bonds, or gain 2 electrons, to achieve the stable octet configuration of a noble gas.

that's it!

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