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What is the correct name of the compound K3N?
, Researcher, Academic writer
Potassium nitride is the correct name of the compound with chemical formula, K3N. The compound is formed between potassium ion (K+) and nitride ion (N-3).
Let us explore more on how potassium nitride is formed. Potassium has nineteen electrons and since it obeys octet rule with electronic configuration of 1s2 2s2 2p6 3s2 3p6 4s1. Potassium looses an electron in its outer subshell(4s) to attain a stable electronic configuration (1s2 2s2 2p6 3s2 3p6). Thus, forming K+.
On the other hand, N has seven electrons with electronic configuration of 1s2 2s2 2p3. Nitrogen also obeys octet rule. Hence, it acquires three electrons to attain a stable octet noble gas configuration (1s2 2s2 2p6), resulting in N-3.
Every nitrogen atom acquires three electrons from potassium. Also, potassium looses one electron to each nitrogen atom. In this interaction every nitrogen atom becomes N-3 and each potassium becomes K+.
N-3 ion and K+ ion combine by exchanging their oxidation states(-3 and +1 respectively) to form K3N(potassium nitride).
, PhD Chemistry & Inorganic Chemistry, Indian Institute of Science Education and Research, Kolkata (2020)
The correct name of the compound K3N is Potassium nitride.
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