when the nuclear charge increases, does the electron;s attraction to the nucleus get stronger or weaker ?
Wouldn't you expect it to get stronger (as long as the electron is in the same shell).
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?
Like charges repel; unlike charges attract.
When the nuclear charge increases, the electron's attraction to the nucleus gets stronger.
To understand why, let's first consider the concept of nuclear charge. The nuclear charge refers to the positive charge present in the atomic nucleus, which is composed of protons. This positive charge attracts the negatively charged electrons that orbit the nucleus.
According to Coulomb's law, the force of attraction between two charged particles is directly proportional to the product of their charges and inversely proportional to the square of the distance between them. In the case of an electron and the nucleus, an increase in the nuclear charge would result in a stronger positive charge in the nucleus, increasing the attractive force between the nucleus and the electron.
Consequently, as the nuclear charge increases, the electron will experience a greater force of attraction towards the nucleus. This increased attraction leads to a tighter hold on the electron, making it more difficult for the electron to move farther away from the nucleus.
In summary, when the nuclear charge increases, the electron's attraction to the nucleus becomes stronger due to the increase in positive charge in the nucleus.