The electronic configuration of three elements `X,Y` and `Z` are given below:
`X 2`
`Y 2,6`
`Z 2,8,2`
(i) Which element belongs to second period?
(ii) Which element belongs to second group?
(iii) Which element belongs to eighteenth group?

The electronic configuration of three clements X, Y and Z are given below , X = 2 , Y = 2, 6 , Z = 2, 8, 2. (i) Which element belongs to the second period ? (ii) Which element belongs to the eighteenth group ? (iii) Which element belongs to the second group ? (iv) What is the valency of Y ? (v) Are Y and Z metals or non-metals ?

The electronic configuration of the elements X , Y , and Z are given below . a ) X=2 b ) Y= 2,6 c ) Z= 2,8 ,2 which element belongs to second period ?

The electronic configuration of the elements, X, Y and Z are given below. A) X=2, B) Y=2,6, C) Z=2,8,3, Which element belongs to second group?

The electronic configuration of the elements X , Y , and Z are given below . a ) X=2 b ) Y= 2,6 c ) Z= 2,8 ,2 Which element belongs to 18 ^(th ) group ?

Group 2 elements belong to

The electronic configuration of an element is 2, 7. In which group does it belong?

The electronic configuration of an element is 2,8,8. In which period does it belong?

The atomic numbers of three elements A,B and C are given below: Element Atomic number {:("Element","Atomic number"),(A,5),(B,7),(C,10):} (i) Which element belongs to group 18? (ii) Which element belongs to group 15? (iii) Which element belongs to group 13? (iv) To which period/ periods do these elements belong?

The electronic configuration of three elements X, Y and Z are: X:2 Y:2,8,7 Z:2,8,2 Which of the following is correct regarding these elements?