Question

2. Among the following the correct order showing variation in melting
points is:
निम्नलिखित में गलनांक परिवर्तन दिखाता हुआ सही क्रम है:
(1) Li>Na>K
(2) Li>Na K
(3) Li<Na>K​

Answer 1

Answer:

1) li>na>k

Explanation:

because valency in outermost orbit changes