Katherine dissolves a tablespoon of salt into a glass of water, and watches as it disappears. she remembers from science class that sodium has an atomic number of 11, and chlorine of 17. as a result, she knows that in solution, when the molecules separate, sodium will be a

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11-09-2018
Chemistry

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Katherine dissolves a tablespoon of salt into a glass of water, and watches as it disappears. she remembers from science class that sodium has an atomic number of 11, and chlorine of 17. as a result, she knows that in solution, when the molecules separate, sodium will be a

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Chlidonias Chlidonias · Answer 1 · 2018-09-20T16:06:17+02:00

When table salt, which is chemically sodium chloride is added to water, the salt readily dissolves in the water. Sodium chloride being an ionic compound ionizes into sodium ion, Na[tex]^{+}[/tex]and chloride, Cl[tex]^{-}[/tex].Sodium has an atomic number 11 and chlorine has an atomic number of 17.

Na-(2,8,1) can readily lose the outermost electron in order get a stable octet configuration on the valence shell. So, sodium forms a cation

Cl-(2,8,7) accepts an electron to complete the octet. So, chlorine forms an anion.

[tex]NaCl(aq) -->Na^{+}(aq)+Cl^{-}(aq)[/tex]

Sodium will form a cation and chlorine an anion when NaCl is dissolved in water.