Atoms and ions radius

  • Thread starter msdel
  • Start date
5
0
I am to arrange the following atoms or ions in order of increasing radius...then give an explanation for the position of S2- in relation to the atoms or ions that come before or after it.

Here is what i have so far...in order of increasing radius.

K+
K
O
S2-
Cl

Now im not sure what they are looking for in an explanation on the rest.

Thanks!
 

Gokul43201

Staff Emeritus
Science Advisor
Gold Member
6,987
14
What's your reasoning ?
 
Hey msdel,

I think you made a small mistake in arranging the particles in the increasing order of their radius. According to me, it should be :
O
Cl
S2- / K+ ( of the same order )
K

This is according to my knowledge. Any criticism is definitely welcome. Thanks.
 
2
0
Hey msdel,

I think you made a small mistake in arranging the particles in the increasing order of their radius. According to me, it should be :
O
Cl
S2- / K+ ( of the same order )
K

This is according to my knowledge. Any criticism is definitely welcome. Thanks.

I am inexperienced with this topic aswell,
but i just want to propose something...
Since S-2 has 16 protons and needs to attract 18 electrons, the electrons are further away from the nucleus than they would be in the case of the Potassium ion K+ where 19 protons need to attract 18 electrons. The protons act as a magnet, and attract the electrons closer to the nucleus.

Can anyone correct me, or contradict me? or am i right....

My Answer:

O, Cl, K+, S -2, K
 

Related Threads for: Atoms and ions radius

Replies
1
Views
8K
Replies
4
Views
15K
Replies
5
Views
3K
Replies
6
Views
1K
Replies
9
Views
17K
  • Posted
Replies
18
Views
4K
Replies
3
Views
7K
Replies
1
Views
661

Physics Forums Values

We Value Quality
• Topics based on mainstream science
• Proper English grammar and spelling
We Value Civility
• Positive and compassionate attitudes
• Patience while debating
We Value Productivity
• Disciplined to remain on-topic
• Recognition of own weaknesses
• Solo and co-op problem solving

Hot Threads

Top