Question

Negative electron gain enthalpy of which alkali metal is highest?
a)Na
b)K
c)RB
d)Li​

Answer 1

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Avoid close contact with people who are sick.

Wash your hands with soap and water frequently. Wash with soap and warm water for 20 seconds. If soap and water aren't available, use an alcohol-based hand rub.

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Stay home when you’re sick (and keep sick children home from school).

Cover your cough or sneeze with a tissue, then throw the tissue in the trash and wash your hands. If you don't have a tissue, cough or sneeze into your upper sleeve or elbow, not your hands.

Clean and disinfect frequently touched objects and surfaces

Answer 2

Explanation:

Which element has the highest negative electron gain enthalpy?

After taking one electron ns2 orbital is fulfilled and become stable. So Alkali metals has negative electron gain enthalpy.