The electronic configuration of two atoms X and Y are as follows: X - 1s ² 2s ²2p ⁶3s ¹, Y -1s ²2s ²2p ⁶3s²3p ⁶4s ² which of the statements below is true of the position of X and Y in the Periodic Table?

x belongs to group 1, Y belongs to period 2,

x belongs to group 1, Y belongs to period 4

x belongs to group 2, Y belongs to period 1

x belongs to group 3, Y belongs to period 2

x belongs to group 3, Y belongs to period 4

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IdowuOluwabukunmi

5 years ago

X has a valence electron of 1 and elements are placed in groups based the number of valence electrons
Y has four shells; number of shells determine the period of an element hence Y is in period 4 and X is in group one

Toluwa001

2 years ago

element Y is calcium and calcium has 20 electrons, its electronic configuration is 2,8,8,2 and oerid is the number of shells. calcium has 4shells which also means it is period 4

mjimeta

10 years ago

thaz awesome love it..... but sometimes its discourages

harrychuks

9 years ago

a big nooooooo. its A.