Question

Suppose that a group contains elements of orders 1 through 10.

Answer 1

Heya!

>> Vertical columns in the periodic table are called as GROUPS

>> Horizontal Rows are called as Periods

>> There are 18 groups and 7 periods

Answer 2

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The six noble gases—helium, neon, argon, krypton, xenon, and radon—occur at the ends of the six completed… The periodic table has eight main groups: 1, 2, 13, 14, 15, 16, 17, and 18 (previously numbered Ia, IIa, IIIa, IVa, Va, VIa, VIIa, and 0, respectively).

yr question is not full fill

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