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aalyn [17]
2 years ago
6

How many protons are in an atom of oxygen? 6 8 16 24

Chemistry
1 answer:
Monica [59]2 years ago
4 0

Answer:

8 Protons

Explanation:

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Here is the electron configuration for Magnesium. How many total electrons are in the 2nd energy level?
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Answer:

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Explanation:

Magnesium is present on group 2.

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2nd energy  level contain 8 electrons. (2s² 2p⁶)

3rd energy level contain 2 electrons. (3s²)

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It react with halogens and form salt. For example,

Mg + Cl₂   →   MgCl₂

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Twenty-four grams of magnesium metal reacts with sixteen grams of oxygen gas to form magnesium oxide. According to the law of co
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