Covalent Bonding (HSC SSCE Chemistry): Flashcards

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Covalent Bonding
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Covalent bonding

Sharing pairs of electrons to achieve stable configuration

Lone pairs

Electrons not shared, surrounding only one nucleus

Chlorine atom electron configuration

2,8,72,8,7

Dash in structural formula represents

One shared pair of electrons (one covalent bond)

Molecular formula

Exact number of each atom type in one molecule

Valency in covalent compounds

Number of covalent bonds an element forms

Number of bonds oxygen forms

2 bonds

Shape of H2O\text{H}_2\text{O} molecule

Bent or V-shaped

Formula rule for AxBy\text{A}_x\text{B}_y

x×valency of A=y×valency of Bx \times \text{valency of A} = y \times \text{valency of B}

Carbon's valency

4

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