The element Z = 107 and Y = 109 have been prepared artificially recent – InterviewSolution

1.

The element Z = 107 and Y = 109 have been prepared artificially recently, however element X with at. No. 108 has not yet been discovered. Indicate the group of these elements if placed in periodic table.

Answer»

Z = 107 (Group no. 7)

Y = 108 (Group no. 8)

X = 109 (Group no. 9)

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