atomic number of an element is 17 identify the element write electronic configuration and mention its valency
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The atomic number of element Chlorine is 17. The symbol of Chlorine is Cl. The electronic configuration is 2, 8, and 7 because chlorine has 7 valance electrons which are in its outer shell.
Chlorine needs one electron to complete its octet which is the reason the valency of chlorine is -1 always.
Chlorine needs one electron to complete its octet which is the reason the valency of chlorine is -1 always.
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➡️The name of the element having atomic number 17is chlorine.
➡️It's electronic configuration is 2,8,7.
➡️The valency of the given element is -1.
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