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LoginFind out the atomic number of an element having 3 shells K, L and M in which M shell has 4 electrons. Identify the element.
Interview Questions Chemistry 1 year ago
Posted on 18 Jan 2024, this text provides information on Chemistry related to Interview Questions. Please note that while accuracy is prioritized, the data presented might not be entirely correct or up-to-date. This information is offered for general knowledge and informational purposes only, and should not be considered as a substitute for professional advice.
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Best Answer
1 year ago
An atom of an ELEMENT (X) has its K, L and M SHELLS filled with some electrons. It REACTS with sodium metal to from a compound NaX. The NUMBER of electrons in the M shell of the atom (X) will be Seven.In NaX, Na FORMS Na+ and X forms negtive ions. Thus, X gains one electron to form uni negative ion in which octet will be completed. Hence, X has 7 valence electrons.
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