Question

Study the diagram and answer these questions:

Answer 1

2 electrons in the n=1 orbit
6 electrons in its n=2 orbit
8 protons in nucleus
8 electrons
6 electrons
4 electrons shared
Covalent bond exist between the two oxygen atoms

Answer 2

Explanation:

The n = 1 means the first shell of an atom whereas n = 2 means the second shell of an atom and so on.

As every atom consists of three sub-atomic particles which are protons, neutrons and electrons.

Protons and neutrons reside inside the nucleus of an atom and electrons revolve outside the nucleus of the atom.

A covalent bond is defined as the bond formed by sharing of electrons between the two combining atoms.

Therefore, the given questions are answered as follows.

• There are 2 electrons in the n = 1 orbit of each atom.

• Each atom has 8 electrons in its n = 2 orbit, after the sharing of electrons take place between both the oxygen atoms.

• Each atom has 8 protons in its nucleus.

• Each atom has 8 total electrons.

• There are 6 electrons in oxygen's outer shell before sharing electrons.

• There are 4 electrons being shared between the two atoms.

• Double bonds exist between the two oxygen atoms. This is because sharing of two electrons is taking place. Hence, a double covalent bond exists when two oxygen atoms when they chemically combine together.