Question

Group number qnd period number of an element with atomic number z=75 is

Answer 1

$1s {}^{2} 2s {}^{2} 2p {}^{6} 3s {}^{2} 3p {}^{6} 4s {}^{2} 3d {}^{10} 4p {}^{6} 5s {}^{2} 4d {}^{10} 5p {}^{6} 6s {}^{2} 4f {}^{14} 5d {}^{5} \\ block = > d \\ group = > 7th \\ period = > 6th$

Answer 2

group number is 10 +. element name is rhenium
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