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because the reaction occurs between a metal and non metal
CL=2,8,7
C

The element calcium and chlorine combine to form ionic compound by

donating or losing electrons.

Ionic compound are compound made up of ions that are formed from

charged particles by losing or gaining electrons.

In other word ionic compound are formed by positively charge ion and

negatively charged ion.  The positively charged ions are called cations

while the negatively charged ion are called anions.

In the case of a compound containing calcium and chlorine , the positively

charged ion is calcium  and the negatively charged ions is chlorine .

The cations of calcium and anions of chlorine can be represented as follows

  • Ca²⁺
  • Cl¹⁻

The calcium atom donate 2 electrons to 2 atoms of chlorine to  form CaCl₂.

The element combine to form ionic compound by donating or losing

electrons.

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