3 years ago

The atomic number of sodium (Na) is 11. This is also the number of which of the following?

Chemistry

1 answer:

attashe74 [19]3 years ago

3 0

D. Protons, Atomic number is the number of protons in an atom.

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Explanation:

$\frac{0.6305 \text{kg}}{0.430 \text{L}} \cdot \frac{1000 \text{g}}{1 \text{kg}} \cdot \frac{1 \text{L}}{1000 \text{mL}} = 1.466 \,\frac{\text{g}}{\text{mL}}$

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Answer: Group 1 ions are known as cations and Group 17 ions are known as anions.

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Ions are formed when an atom looses or gains electrons.

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