How do the size of ions compare to the size of the atoms from which they from

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Chemistry

Cecelia Bartlett

14 June, 02:05

How do the size of ions compare to the size of the atoms from which they from

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Chanel Guerra · Answer 1

The nucleus can't hold the 18 electrons in the Cl - ion as tightly as the 17 electrons in the neutral atom, the negative ion is significantly larger than the atom from which it forms. For the same reason, positive ions should be smaller than the atoms from which they are formed.