Lecture 7 Flashcards
(17 cards)
Cations
Loose electrons and are metals
Anions
Gain electrons and are non-metals
Group 1A
Loose 1 e- (H can gain 1)
Group 2A
Loose 2 e-
d-block
Can loose 1 to 4 e-
Group 3A
Loose 3 e- (Tl can also loose 1)
Group 4A
Loose 4 e- (Sn and Pb can also loose 2 e-)
Group 5A
Non-metals gain 3 e-
Metals loose 3 and 5 e-
Group 6A
Gain 2 e-
Group 7A
Gain 1 e-
d-block cations
Loose the s-sublevel before the d-sublevel
Energy to melt or vaporize
Lattice Energy
Highest melting point
Smallest compound or higher charges
Non Polar covalent bond (Electronegativity difference)
0 to 0.5
Polar covalent bond (Electronegativity difference)
0.5 to 1.9
Ionic bond (Electronegativity difference)
1.9 to 3.5 (pure ionic)
Octet rule
Elements tend to gain, lose, or share electrons to acquire a full octet