Answer:
The atomic number assigned to each of the 118 elements (to date) is equal to the number of protons of each of them. This number of protons or the atomic number doesn’t vary for each element and so it is its identity or “atom-print”. Once the proton/s is/are compromised for each element it wont be the same element. Neutrons may vary for an element and these variations are called isotopes. Electrons of each element can also vary either by sharing electrons via covalent bonding or donating an electron becoming a positive ion or cation or accepting or stealing an electron becoming a negative ion or anion via ionic bonding.
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