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the ions of Cl and Br both are negative 1.

this means Cl and Br need one more electron to obtain a full shell.

to complete their shells, Cl and Br form a covalent bond.

also, Cl and Br are both nonmetals.

2 nonmetals cam only form a covalent bond.

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14y ago
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Q: Why is chlorine and bromine a covalent bond?
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