Question

Answer very very fast please:
An element X has mass number 40 and number of neutrons 20, if the cation derived from it has 18 electrons, then the symbol of the cation is

Answer 1

40

X^2+

20

this is your answer but I guess time is up

it very easy tho

btw wt is your name?

Answer 2

Explanation:

(a) An element X having mass number 40 and contains 21 neutrons in its atom belongs to group 1 (2,8,8,1).

(b) Y might be Oxygen since the valency of oxygen is 2 and X is monovalent so the compound form will be X

2

Y