Question

Which element tends to hold onto its outer electrons most strongly?

A) He
B) Na
C) K
D) Ne

Answer 1

Answer:

A

Explanation:

As electrons very close to nucleus as it has a single orbital.

Answer 2

He (Helium) element tends to hold onto its outer electrons most strongly.

Explanation:

Outer most shell named as K,L,M,N and so on. Outer most shell is known as Valence shell. Shells are surrounded by the nucleus . The shell which is near the nucleus that is most stronger than other shells.

1. He - atomic no.-2 lies in the first shell .
2. Na- atomic no. - 11 lies in the three shell as 2,8,1
3. K - atomic no. - 19 lies in the 4 shells as 2,8,8,1
4. Ne - atomic no. - 10 lies in 2 shells as 2,8

Hence ,

Option ( A) He is correct.

Project code #SPJ3