A lithium ion has 3 protons and 2 electrons. It forms when a neutral lithium atom loses one electron.Classify what type of ion this is.
Question
A lithium ion has 3 protons and 2 electrons. It forms when a neutral lithium atom loses one electron.Classify what type of ion this is.
Solution
This is a cation. A cation is a type of ion that carries a positive charge. The lithium ion has 3 protons (which are positively charged) and 2 electrons (which are negatively charged). Since there are more protons than electrons, the ion as a whole carries a positive charge. Therefore, it is a cation. The lithium atom becomes a lithium ion when it loses an electron during a chemical reaction. This loss of a negatively charged electron results in a positively charged ion.
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