Question and answer
Why is electron affinity expressed as a negative number while the ionization energy has a positive number in calculating the energy of ion-pair formation?
Electron affinity is the ability of an atom to hold an additional electron. If the atom has more tendency to accept an electron then the energy released will be large and consequently the electron affinity will be high. [ Electron affinities can be positive or negative. It is taken as positive when an electron is added to an atom. It is expressed as electron volts per atom (eV per atom) or kilo
joules per mole. Electron affinity depends on: Extent of nuclear charge Size of the atom Electronic configuration As a result of the gain in electrons, the atom gains one negative charge. In the case of halogens, all the elements have a high electron affinity, as they need one electron to complete the octect of their outermost shell. ]
Expert answered|daddy_ryan|Points 163|
Question
Asked 8/16/2010 4:14:21 AM
0 Answers/Comments
Get an answer
New answers
Rating

There are no new answers.

Comments

There are no comments.

Add an answer or comment
Log in or sign up first.
Questions asked by the same visitor
What is the greatest number of valence electrons that can be shared between 2 main groups of atoms in the formation of covalent bonds? Is it possible to have a 100% covalent bond?
Question
Not Answered
Updated 8/26/2011 8:02:14 PM
1 Answer/Comment
8. Valence electrons are the outer ring of electrons. Once you get to 8 you start a new ring. There are some instances when this is untrue, but as a rule the answer is 8
Added 8/26/2011 8:02:14 PM
21,942,441 questions answered
Popular Conversations
The Dietary Guidelines for Americans include all of the following ...
Weegy: D. do not drink alcoho User: What components of a food label can help consumers compare the amounts of ...
8/29/2015 2:28:18 AM| 2 Answers
Which of these religions is ...
8/29/2015 5:14:54 AM| 1 Answers
Who was at the top of the caste ...
8/29/2015 5:35:57 AM| 1 Answers
Weegy Stuff
S
P
C
L
P
L
1
P
P
1
P
1
P
L
P
R
Points 1278 [Total 11631]| Ratings 7| Comments 1208| Invitations 0|Offline
S
L
Points 798 [Total 1113]| Ratings 1| Comments 788| Invitations 0|Offline
S
1
L
L
Points 754 [Total 9222]| Ratings 3| Comments 714| Invitations 1|Offline
S
L
L
P
1
Points 737 [Total 9310]| Ratings 2| Comments 717| Invitations 0|Offline
S
Points 540 [Total 766]| Ratings 1| Comments 530| Invitations 0|Online
S
Points 242 [Total 250]| Ratings 0| Comments 242| Invitations 0|Offline
S
Points 224 [Total 224]| Ratings 3| Comments 194| Invitations 0|Offline
S
Points 214 [Total 533]| Ratings 1| Comments 204| Invitations 0|Offline
S
Points 178 [Total 255]| Ratings 0| Comments 178| Invitations 0|Offline
S
Points 144 [Total 175]| Ratings 0| Comments 144| Invitations 0|Offline
Home | Contact | Blog | About | Terms | Privacy | Social | ©2015 Purple Inc.