Question

Q. Two elements X an Y have atomic number 11 and 16 respectively.
(i) Write the electronic configuration of both.
(ii) Which type of bond will they form?
(iii) Write the formula of the compound formed by their combination (in terms of X and Y).

Answer 1

Answer:

electronic configuration of the sodium (Na) having atomic number 11 is 2,8,1

electronic configuration of the sulphur(s) having atomic number 16 is 2,8,6

they have covalent bond

NaS2

Answer 2

Answer:

Explanation:

X= 1s2 2s2 2p6 3s1

Y= 1s2 2s2 2p6 3s2 3p4

X will form an ionic bond as it can easily lose on e from outer shell

Y will form a covalent bond as it can't lose e and only can share

As the valence of X is 1 and y is 4 so they can form X4Y