Write the symbol for the monatomic ion that has a charge of 1 - and the condensed electron configuration [ne]3s23p6.

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Chemistry

Amanda Cox

6 September, 16:34

Write the symbol for the monatomic ion that has a charge of 1 - and the condensed electron configuration [ne]3s23p6.

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Answer is: the symbol is Cl.

[Ne ] 3s ² 3p⁶ is electric configuration of noble gas argon, neon (Ne) has10 electrons plus 6 electrons in 3s and 3p orbitals. Neutral atom of m onatomic ion that has a charge of 1 - has one electron less than argon, so that atom (chlorine) has 17 electrons. Charge of 1 - means one electron more for ion: 17 + 1 = 18.