Explain how the effects of nuclear charge and the increasing number of core electrons in an atom oppose each other.
@Luigi0210 ? can you help me?

Question

Explain how the effects of nuclear charge and the increasing number of core electrons in an atom oppose each other.
@Luigi0210  ? can you help me?

aaronq · Answer

protons within the nucleus carry a positive charge (this is what they refer to when they say "nuclear charge"). electrons closer to the nucleus (i.e. core electrons) "blanket" (or in chemical terms $shield$) the charge of protons towards valence electrons and decrease their attraction.

aaronq · Answer

does that make sense to you?

anonymous · Answer

yea
Thank you so much! I never get my questions answered & then I get frustrated, So thank you so much!

anonymous · Answer

Electrons are negative and don't like each other, however they are attracted to protons in the nucleus. THe effective nuclear charge is the attractive force that the electron of interest feels on the positive charge of the protons in the nucleus. However, this force is reduced or opposed by the electron-electron repulsion. If you are viewing a valence electron (outermost electron) it feels more electron-electron repulsion from inner electrons, and hence have less effective nuclear charge or binding energies.

aaronq · Answer

no problem. in your answer, you should expand on the counteractive effects as the number of both protons and electrons increase.

anonymous · Answer

Alright :) Thanks Nuge!!! You're a great help too!

anonymous · Answer

I have another question....

anonymous · Answer

What elements are in the halogen family?  What factors make them alike?

aaronq · Answer

halogens are group VII (7) or XVII (17), they have 7 valence electrons (hence their group).

aaronq · Answer

as a result of their almost full valence "shell", they are quite reactive.

anonymous · Answer

They make good neon lights in the club. We all dance to them.

anonymous · Answer

ok... that's understandable :) Thank you!!

anonymous · Answer

Lol Nuge xD

aaronq · Answer

lol most (if not all) "neon" bulbs are filled noble gases (neon is noble gas), not halogens.. Halogen bulbs are those long, white lights you have at school.

anonymous · Answer

Awww :/ haha the lights went from a club to school lol

aaronq · Answer

haha sorry, i killed the fun :S