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Question

Calcium is an element with atomic number 20 is it a metal or nonmetal?


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Solution

Definition: Metals are substances that have a tendency to lose electrons, For example, sodium, potassium, calcium, etc.

  • Calcium is an element whose atomic number is 20.
  • It has electronic configuration 2,8,8,2, therefore it has 2 electrons in its last shell or outermost shell, hence it has the tendency to lose its 2 loosely bound electrons.
  • Therefore, calcium is a metal.

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