Question

Explain why it is harder to remove an inner shell electron than a valence electron from an atom?

Answer 1

@Amber1975 excellent question

Answer 2

To understand this we need to look at the nucleus of an atom.

An atom has an nucleus that's positively charged, because protons have a positive charge while neutrons have no charge. both protons and neutrons are in the nucleus.



So far follow?

Answer 3

now;

think of our atom like this.

Opposite charges attract, right?

well outside the nucleus we have electrons they are negatively charged.

the positive charge of the nucleus is attracted to the negatively charged electrons

Answer 4

Now look at this model