An atomic cation with a charge of +2 has the following electron configuration: 1s 25 2p°3s 3p°3d² 6. What is the chemical symbol for the ion? +2 V How many electrons does the ion have? 18 How many 2s electrons are in the ion?

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Q: atom

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Atoms and Molecules

An atom is the smallest unit of an element that possesses all the properties of that particular element. Molecules are the smallest unit of a substance that possess all the properties of that particular substance.