An atom is made up of protons and neutrons (both found in the nucleus) and electro (irl the surrounding electron cloud), The atomic number i$ erupt to th e bomber of pr The mass number is equal to the plumber protons plus neutirons, in a neutral atom . number of protons equals tho number of electrons. The charge on an ion indicates ( ,moalance between protons and electrons. Too many electrons produc .-marge. too positive charge. 'hls structure Carl be wriitern as part of a chemical symbol.

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Explanation:

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explanation:

covalent bonds

consist of pairs of electrons shared by two atoms, and bind the atoms to fixed orientation and requre high energies to break them

ionic bonds

when two atoms differ considerably in their electronegativity, then one of the atoms will lose its electron to the other atom. this results in a positively charged ion(cation) and a negatively charged ion (anion)

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