Question

Three elements X y and z have atomic number 7, 10 and 14.
i) identify the group number of these elements in the periodic table
ii) mention one unique feature each of elements y and z.
Which of the above two elements belong to the same period?

Answer 1

7 belong to group 15 ,10 belongs to group 18 ,14 belongs to group 14 .element y is noble gas and element z iS metalloid .7 and 10 belongs to same period

Answer 2

Hey freind your answer is here

Electronic configuration of
X -> 2,5
Y -> 2,8
Z -> 2,8,4

1) Group number of X is 15
Group number of Y is 18
Group number of Z is 14

2) Y is a noble gas whereas Z is non metal.

X and Y belong to the same period as number of shells are equal of X and Y.

Hope it will help you

Please mark my answer as brainliest answer