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Atomic Structure and Chemical Bonding — CHEMISTRY STD 9 — Question

ICSE BoardEnglish MediumSTD 9CHEMISTRYAtomic Structure and Chemical Bonding1 Mark
Question
what do you understand by electrovalent bond? Explain with an example.
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Answer

An electrovalent bond is formed when a metal atom transfers one or more electrons to a non-metal atom.
Some examples of electrovalent bond are: $\mathrm{MgCl}_2, \mathrm{CaCl}_2, \mathrm{MgO}, \mathrm{Na}_2 \mathrm{~S}, \mathrm{CaH}_2, \mathrm{AlF}_3, \mathrm{NaH}, \mathrm{KH}, \mathrm{K} 2 \mathrm{O}, \mathrm{KI}, \mathrm{RbCl}, \mathrm{NaBr}, \mathrm{CaH}_2$ etc.

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