Answer:
1. Lithium Atom (Li) has 3 protons, 3 electrons, and 4 neutrons. Lithium Ion (Li+) has 3 protons, 2 electrons and 4 neutrons
2. lithium-ion has a positive or a negative charge but a lithium atom is neutral
3. A lithium atom has 3 protons and 3 electrons. It can lose one of its electrons, making it an ion. It now has more positive protons than electrons so it has an overall positive charge. Therefore it is a positive ion
4. same number of protons
5. The oxygen molecule is made of two oxygen atoms that have formed a double bond with each other and share valence electrons. The oxygen ion is formed when the oxygen atom gains two valence electrons, and this results in an oxygen ion with a 2- charge.
6. Oxygen has the second-highest electronegativity of any element. When Oxygen forms a bond it pulls the electron density of the bond closer to the Oxygen and away from the other element. This causes Oxygen to have a negative charge and the other atom a positive charge.
Explanation:
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