Question

7. The electronic configuration of metal
'A' is 2,8,1 and that of metal 'B' is
2.8,2. Which of the two metals is
more reactive? Write their reaction
with dilute hydrochloric acid.​

Answer 1

Answer:

A

Explanation:

the metal A is more reactive because it has least number of valance electron and can lose the election easy than B

Answer 2

Answer:

metal A is more reactive than metal B

metal A is Sodium in metal B is magnesium

REACTION:

1. 2Ma+2HCl_2NaCl+H2
2. Mg+2HCl_MgCl2+H2

Explanation:

if the number of electrons in the outermost orbit is less than the metal is more reactive therefore metal a is more reactive