Which of the following statements is true?

a. protons are located outside the nucleus of an atom.
b. individual atoms can be seen with the naked eye.
c. the nucleus of an atom contains protons and neutrons.

convalent bond :

is a chemical bond formed by the sharing of electron between 2 atoms.

it is the direct chemical bond between 2 atoms.

in bond formation atoms are involved here.

electrovalent bond:

is a chemical bond defined as electroststic attraction between 2 atoms.

it is the electrostatic attraction between 2 atoms.

in bond formation, ions are involved here.

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