electron affinity Flashcards
1
Q
what is electron affinity
A
its the process of gaining electrons and to become a negative ion.
2
Q
what type of reaction is it
A
it is an exothermic reaction
3
Q
what is the symbol of change in energy
A
kjmol-1
4
Q
hot does the amount of energy needed to gain electrons as you go down groups
A
down the groups
5
Q
as you go across the periods the structures of the elements change what are they an in order from group 1 to 8
A
giant metallic, giant covalent, simple molecule.
