Question

write the valency of elements having atomic number 3 and another element having atomic number 11.

Answer this question
Urgently needed​

Answer 1

Answer:

Lithium(Le) Atomic Number: 3 Valency = 1

Sodium(Na) Atomic Number: 11 Valency = 1

Hope it helps you please make me brainlist

Answer 2

Answer:

1,1

Explanation:

Element with atomic number 3 is lithium.

Element with atomic number 11 is sodium.

Valency of lithium is 1 as first shell is completely filled with 2 electrons and 1 electron is left in valence shell L .

Valency of sodium is 1 as first shell K is completely filled with 2 electrons and second shell L is filled with 8 electrons and 1 electron is left in valence shell M