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zhannawk [14.2K]
3 years ago
5

Recall that atoms gain or lose electrons to become ions. So, an ion has a different number of electrons than its corresponding n

eutral atom. Positive ions have lost electrons, and negative ions have gained electrons. The table includes the electron configuration of several ions. Complete the rows for magnesium and oxygen (oxide) ions by identifying the correct ion charge, electron configuration, and neutral atom with the same configuration as the ion. You may need to use online resources or the periodic table to determine the correct ion charges. Select the correct answer from each drop-down menu to complete the table.​

Chemistry
1 answer:
horrorfan [7]3 years ago
8 0

Answer:

2+/1s2 2s2 2p6/neon

2−/1s2 2s2 2p6/neon

Explanation:

Explanation:

A magnesium atom that loses two electrons to become a magnesium cation has the same electron configuration as neon. An oxygen atom that gains two electrons to become an oxygen anion also has the same electron configuration as neon.

Ion Ion Charge Electron ConfiguratIon Neutral Atom with Similar

Electron ConfiguratIon

sodium 1+ 1s2 2s2 2p6 neon

magnesium 2+ 1s2 2s2 2p6 neon

aluminum 3+ 1s2 2s2 2p6 neon

potassium 1+ 1s2 2s2 2p6 3s2 3p6 argon

calcium 2+ 1s2 2s2 2p6 3s2 3p6 argon

nitrogen (nitride) 3− 1s2 2s2 2p6 neon

oxygen (oxide) 2− 1s2 2s2 2p6 neon

fluorine (fluoride) 1− 1s2 2s2 2p6 neon

sulfur (sulfide) 2− 1s2 2s2 2p6 3s2 3p6 argon

chlorine (chloride) 1− 1s2 2s2 2p6 3s2 3p6 argon

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