eliasnajah
eliasnajah eliasnajah
  • 15-10-2020
  • Physics
contestada

If an atom of Calcium has 21 electrons is it a...?

A) isotope


B) calcium does not have electrons


C) normal, no charge


D) ion

Respuesta :

Аноним Аноним
  • 15-10-2020

Answer:

D) ion

Explanation:

A stable atom of calcium has 20 electrons

Answer Link
sftballchick45 sftballchick45
  • 15-10-2020

Answer:

A - Isotope

Explanation:

Answer Link

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