Jump to content
Sign in to follow this  
stevemangles

Hydrogen and Helium+ Radius

Recommended Posts

yep, here you are;

H- 154 pm

H 78 pm

H+ 10^-5 pm

covalent 30 pm

van der Waals 120 pm

 

He 128 pm

van der Waals 122 pm

He+1 0.93 A...i dont have a key that can type the A with the little circle above it.

Share this post


Link to post
Share on other sites

furthering my previous post, the reason why He+1 has a lesser atomic radius than H+ is because its effective nuclear charge is greater, because it has more protons "pulling" the electrons.

Share this post


Link to post
Share on other sites
yep' date=' here you are;

H- 154 pm

H 78 pm

H+ 10^-5 pm

covalent 30 pm

van der Waals 120 pm

 

He 128 pm

van der Waals 122 pm

He+1 0.93 A...i dont have a key that can type the A with the little circle above it.[/quote']

 

78 pm for H sounds like the average value, because the most probable value should be the Bohr radius, which is 52.9 pm.

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
Sign in to follow this  

×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.