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Iodine is non Metal but it …

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Iodine is non Metal but it show lustrous property why

Posted by Satyam Srivastava 6 years ago

CBSE > Class 10 > Science

2 answers

Mukesh Rawat 6 years ago

Because it is seventeenth group element

1Thank You

Yogita Ingle 6 years ago

Lustre is basically due to free electrons. As we move down the group, the size of the atoms increases and more shells are added, so due to screening effect, effective nuclear charge is less and hence electrons are loosely bound. Moreover, the non-metallic property decreases on going from top to bottom of the group. Therefore, iodine is lustrous.

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