Question

how to determine the number of electrons, neutron,and number of Neutron in an atom ? (make a table for z=1 to z=20)​

Answer 1

Answer:

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Explanation:

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Answer 2

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The number of electrons in a neutral atom is equal to the number of protons. The mass number of the atom (M) is equal to the sum of the number of protons and neutrons in the nucleus. The number of neutrons is equal to the difference between the mass number of the atom (M) and the atomic number (Z).

Since the vast majority of an atom's mass is found in its protons and neutrons, subtracting the number of protons (i.e. the atomic number) from the atomic mass will give you the calculated number of neutrons in the atom. In our example, this is: 14 (atomic mass) – 6 (number of protons) = 8 (number of neutrons).