How do atoms of the same element differ? What are these different types of atoms called? What abbreviated form is used to represent them

they differ by the electricity around them instead of them making there own air to move.

Explanation:

DIFFERENT NUMBERS OF NEUTRONS

Isotopes;

Isotopic notation

Explanation:  The mass number is simply the total number of protons and neutrons in an atom's nucleus. This number differentiates between the isotopes of an element. The atomic mass is the actual mass of the matter in an atom measured in relative mass units called unified atomic mass units (u). Atomic masses are always decimal numbers and are used for quantitative calculations in chemical reactions. Mass number is used in nuclear chemistry                

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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answer: mercury

explanation: