define atomic number
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The atomic number uniquely identifies a chemical element. It is identical to the charge number of the nucleus. In an uncharged atom, the atomic number is also equal to the number of electrons
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Atomic Number (Z)
Atomic Number of element is defined as the Number of the protons in nucleus. It is denoted by the Letter Z. Z = Number of protons present in nucleus. For example, The number of protons in hydrogen atom is 1,So Atomic Number of Hydrogen is 1.
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