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Chemistry Asked by a SnapAndSolve user · about 2 hours ago

Pulling It All Together Analyze the table below, which includes the most common net charge of ions formed...

Pulling It All Together
Analyze the table below, which includes the most common net charge of ions formed by three elements. Choose two of these elements and describe why they most commonly form cations or anions. Then, describe what change(s) must happen inside the atom to create the ion.
Element Name | Element Symbol | Net Charge of Most Common Ion
Lithium | Li | +1
Oxygen | O | -2
Nitrogen | N | -3

Answer

Lithium and oxygen:

  1. Lithium most commonly forms a cation, Li⁺, by losing its one outer-shell electron. This leaves a full first electron shell. The atom changes from 3 electrons to 2 electrons while retaining its 3 protons, producing a net charge of +1.
  2. Oxygen most commonly forms an anion, O²⁻, by gaining two electrons to fill its outer shell. The atom changes from 8 electrons to 10 electrons while retaining its 8 protons, producing a net charge of −2.

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