what is the difference between a halogen and halide ion?

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owais_148
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could you include some examples. thanks
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username4515420
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A Halogen is a group 7 element and halide ions are its ions
so a halogen is BR2 ,Cl2 , F2 , I2
and halide ions are cl- , br - , f- etcc
(Original post by owais_148)
could you include some examples. thanks
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syrup!
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when a halogen atom gains an electron it becomes a halide ion with a -1 charge

for example when a Cl atom gains an electron it becomes a Cl- ion
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student9102
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Halogens are group seven elements and when they combine with other elements the compound they become is a halide.
(Original post by owais_148)
could you include some examples. thanks
Last edited by student9102; 2 years ago
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daesbaes
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A key difference between a halogen and halide is also their relative sizes - the ionic radii of halides are greater, due to having a net negative charge, and an expansion of their electron cloud density.
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owais_148
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thanks guys
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randomusername23
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yes halides are ionised halogens atoms i.e. they gain an electron. E.g. Cl- is a halide ion but Cl2 is a halogen
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