SSC
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Valence electrons are shared
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a sea of mobile electrons surround the cations
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valence electrons are shared between atoms
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none of the above
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Detailed explanation-1: -A covalent bond is formed by the equal sharing of electrons from both participating atoms. The pair of electrons participating in this type of bonding is called a shared pair or bonding pair. Covalent bonds are also called molecular bonds.
Detailed explanation-2: -Covalent bonds involve the sharing of electron pairs between atoms. Electron pairs shared between atoms of equal or very similar electronegativity constitute a nonpolar covalent bond (e.g., H–H or C–H), while electrons shared between atoms of unequal electronegativity constitute a polar covalent bond (e.g., H–O).
Detailed explanation-3: -A covalent bond is formed between two non-metals. The sharing of electron pair takes place between their atoms and a covalent bond is formed.