carson9373
30.10.2020 •
Chemistry
Identify the noble gas that has atoms with the
same number of electrons as a chloride ion in
table salt.
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Ответ:
Ar
Explanation:
Chlorine has an atomic number of 17. That means that it has 17 protons and 17 electrons, thus being electrically neutral. When it gains 1 electron to form the chloride ion, the total number of electrons is 17 + 1 = 18.
Argon is a noble gas with an atomic number of 18, that is, it has 18 protons and 18 electrons.}
Then Cl⁻ has the same number of electrons as Ar.
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