Find out the valency of an atom, if it contains 17 protons
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So the valency = 8-7 = 1. Its valency is 1 and it is a non-metal and it is present in the 17th group.
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the valency = 8-7 = 1. Its valency is 1 and it is a non-metal and it is present in the 17th group.
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Valency is defined as the combining capacity of atoms or molecules. It is obtained from the number of electrons present in the outermost shell of an atom. The atomic number of chlorine is 17 and the electronic configuration is 2, 8, 7. Therefore, the valency of chlorine is 1.
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