Define the elements in group 6a or the chalcogens

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(a) The symbol and group number of the Period 7 transition element whose atoms have the fewest protons are (a) and (b) .
(b) The elements in Group 6A(16) are sometimes called the chalcogens. The symbol and atomic number of the only metallic chalcogen are (a) and (b) .
(c) The symbol and number of protons of the Period 4 alkali metal atom are (a) and (b) .

Reference no: EM13553491

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