What is covanlent radii, metallic radii, ionic radii and Vender Waals radii, I'm sorry if this question is stupid ^^' but I really have no idea....

Question

anonymous · Answer

*Vander Waals

somy · Answer

yes, plz we need to know @Kainui @aaronq  plz plz plz help T_T

anonymous · Answer

@emcrazy14

anonymous · Answer

help please?

anonymous · Answer

An atom does not have a fixed radius. The radius depends on how the atom is bonded. 
The covalent radius is the found by calculating the distance between nuclei of two similar atoms joined together by a single bond and then halving it. 
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anonymous · Answer

Oookkk 
and what about Vandar waals? :O

anonymous · Answer

Now if the two atoms are just touching (not squashed together as before), the attractive forces are much less. Thus, the van der Waal's radius is half the distance between the nuclei of the two atoms. 
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anonymous · Answer

Ooooh that makes a lot more sense!!

anonymous · Answer

Bu doesn't that mean Ionic is no more different than the Vandar Waals?

anonymous · Answer

No. Ionic radius  is the radius of an atom's ion. Like, when sodium become Na+ by losing one electron, it's radius decreases. 
Similarly, metallic radius is  one-half of the distance between the two adjacent metal ions in the metallic lattice.

anonymous · Answer

Oooooh ok   THANK YOU SOOO MUCH KAMI-SAMA!!
I'm forever in your debt!!!! (no exaggerations)

anonymous · Answer

LOL