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Covalent in the solid, liquid and gas phases.

The structure of solid BeCl2 is an unusual chain polymer with two chlorine atoms bridging between the Be atoms. The ClBeCl bond angle is less than tetrahedral, at 980 . It therefore achieves an octet of electrons and has an approximate hybridisation of sp3 .

The structure of liquid is dimeric with 2 chlorines bridging, Be does not achieve the octet in this.

In the gas the dimer persists up to around 900 0when it is fully dissociated into the linear Cl-Be-Cl monomer. This is linear as predicted by VSEPR.

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11y ago
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11y ago

Covalent bonding

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Q: What type of bonding is present in BeCl2?
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