3 years ago

10. In which of the following is the symbol for the ion and the total number of electrons it contains given correctly?

1 answer:

dalvyx [7]3 years ago

5 0

Answer:

10. D

9. A

8. A or B

Explanation:

10. Calcium has 20 electrons, but the Calcium ion has 18 electrons.

9. The mass of electrons are negligible.

8. Electrons have a very small mass where some consider it to have no mass.

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