Question

The atomic number of an element 'X'is 11 and the atomic number of ‘Y'is 17.
Then the type of bond formed between these two elements
A. hydrogen bond
B covalent bond
C. ionic bond
D. metallic bond​

Answer 1

Answer:

a) X belongs to Group 17 and 3rd period

Y belongs to Group 2 and 4th period

b) X-Non-metal and Y metal

c) Basic oxide; Ionic bonding

d) Ref. image

solution

Answer 2

Answer:

C] Ionic bond

Explanation:

Element X:

• Element X has atomic number 11
• Its electronic configuration would be

→ 2, 8, 1

• This means that element X has 1 electron extra in its outermost shell which it will donate.

So, element X is a metal with valency +1

Element Y:

• Element Y has atomic number 17
• Its Electronic configuration can be written as:

→ 2, 8, 7

• This shows that element Y is a non-metal and is need of 1 electron.

So, element Y has a valency of -1

Conclusion:

When element X combines with element Y, exchange of electrons happens and so the bond formed is Ionic bond.