HELP homework horrors strike again

[magic8ball]

atomic number versus atomic radius... is there any link???

for example; Hydrogen (H) atomic number = 1

atomic radius =25

is there any link? i have a graph with atomic numbers and radius's and now it is telling me to describe and explain!!!!

aaaarrrrggggghhhhh

[Gilded]

There are many factors that affect the atomic radius.

 

The Wikipedia article has a decent summary about it:

http://en.wikipedia.org/wiki/Atomic_radius

 

( Try to think about it too, not just copypaste from Wikipedia. )

[ecoli]

there are a lot of factors, but there are trends associated with the periodic table and atomic radius (of atoms in the ground state).

 

Atomic radius tends to decrease going across a row, and increase going down a column. Be careful though, you can't compare diagonally.

[steiner]

As you increase the positive charge in the nucleus, the electrons are pulled in more causing the radius to decrease. But this is more than offset by electronic shielding when a new shell is formed.

 

Try and see the pattern that emerges, although sub shells confuses things a bit I think.