when the nuclear charge increases, does the electron;s attraction to the nucleus get stronger or weaker ?

Answer 1

Wouldn't you expect it to get stronger (as long as the electron is in the same shell).

Answer 2

yeah that's what i thought but my notes said :the greater the nuclear charge, the weaker the electron's attraction to the nucleus" so i got confused.
and this is for factors affecting trends

& can u please explain electron-electron repulsion pls?

Answer 3

Like charges repel; unlike charges attract.