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
17,894,154 questions answered
Popular Conversations
3x+3/18x= User: 10x+3/=
Weegy: this is quite simple, if you read over the question a few times and learn the tendencies. One number is ten ...
10/20/2014 5:27:08 PM| 5 Answers
Which value for x makes the sentence true? 8x = 3x 30
Weegy: 8x - 20 = 3x + 5; 8x - 3x = 5 + 20; 5x = 25; x = 25/5; x = 5 User: 7x - 5 = 3x + 11 Weegy: 8x + 3 = 7x - ...
10/20/2014 7:11:38 AM| 2 Answers
Which value for x makes the sentence true? 8x = 3x + 20
Weegy: 8x - 20 = 3x + 5; 8x - 3x = 5 + 20; 5x = 25; x = 25/5; x = 5 User: Which value of x makes the following ...
10/20/2014 7:16:30 AM| 2 Answers
Which value of x makes the following equation true? 3(x - 3) = -2x ...
Weegy: 6(x - 2) = -2x + 28 6x - 2 = -2x + 28 6x - 12 = 28 + 2x 8x - 12 = 28 8x = 28 + 12 8x = 40 x = 40/8 x = ...
10/20/2014 7:18:42 AM| 2 Answers
After the auditorium filled up,we seated about fifty people on the ...
Weegy: After the auditorium filled up, we seated about fifty people on the stage. The sentence structure is: ...
10/20/2014 9:35:49 AM| 2 Answers
When particles are moving between two phases and no net change in the ...
Weegy: When particles are moving between two phases and no net change in the amount of either phase occurs, ...
10/20/2014 10:33:23 AM| 2 Answers
Is the example a complete sentence, sentence fragment, or run-on ...
Weegy: The bird dove swiftly then it landed gently on the branch. This is B. Complete sentence. User: Is the example ...
10/20/2014 10:38:45 AM| 2 Answers
Weegy Stuff
S
L
1
1
1
1
L
1
L
Points 2160 [Total 14535]| Ratings 0| Comments 2160| Invitations 0|Offline
S
L
1
L
P
C
1
P
C
1
L
Points 1393 [Total 10874]| Ratings 3| Comments 1363| Invitations 0|Offline
S
1
L
1
L
P
P
L
Points 746 [Total 12975]| Ratings 0| Comments 746| Invitations 0|Offline
S
L
Points 463 [Total 1862]| Ratings 0| Comments 463| Invitations 0|Offline
S
1
L
L
Points 453 [Total 6247]| Ratings 3| Comments 423| Invitations 0|Online
S
Points 401 [Total 401]| Ratings 0| Comments 371| Invitations 3|Offline
S
Points 313 [Total 314]| Ratings 3| Comments 283| Invitations 0|Offline
S
Points 195 [Total 195]| Ratings 1| Comments 185| Invitations 0|Offline
S
P
C
L
P
L
1
Points 48 [Total 6282]| Ratings 0| Comments 48| Invitations 0|Offline
S
Points 27 [Total 27]| Ratings 0| Comments 27| Invitations 0|Offline
Home | Contact | Blog | About | Terms | Privacy | Social | ©2014 Purple Inc.