Rewrite the following statements after correction, if necessary : (a) Groups have
Rewrite the following statements after correction, if necessary :
(a) Groups have elements with consecutive atomic numbers.
(b) Periods are the horizontal rows of elements.
(c) Isotopes are the elements of the same group.
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(a) Periods have elements with consecutive atomic numbers.
(b) Correct.
(c) Correct.
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