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in the last shell (valence shell)

The amount of electrons that one atom shares with other atoms in a covalently bound molecule is typically equal to the number of electrons required to give it a noble gas configuration. The correct option is A.

What are covalent bonds?

The toughest bonds are covalent ones. This link is created when two atoms share electrons in a mutually beneficial way. This connection requires less electronegativity between the elements.

The electrons must achieve noble gas configuration, which requires them to finish their outer shell because the outer shell of noble gases is complete, in order to create covalent bonds.

These elements or compounds formed by these bonds are called covalent compounds. They share electrons mutually, that is why they are the strongest.

Thus, the correct option is A, needed to give it a noble gas arrangement.

To learn more about covalent bonds, refer to the link:

https://brainly.com/question/12001927

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Your question is incomplete. Your full question is most probably given below:

Needed to give it is a noble gas

arrangement in the atom

in its in all the atoms

in its nucleus