Question

7. (i) Electronic configuration - 2,8,2
(ii) Metal, as it can easily lose electrons (from outer most orbit)
(iii) (a) x+2 Y-2
(b) x+2 Z-1
2
2.
2
1
Compound - XY
Compound - XZ2
8. Functions of the nervous system :
(i) Collects information from the surroundings.
(ii) Controls and co-ordinates the movement of muscles.
(iii) Helps to recognise smell, taste, vision, hearing etc. with the help of sense organs.​

Answer 1

Answer:

i) magnesium

bro question not understandable.

please resend it.

Answer 2

Answer:

8. maybe controls and co-ordinates the movements of muscles