Lecture 8 - Ionic Compounds

Question 1

what are ionic bonds?

Answer 1

the result from a transfer of electrons from one element to another

Question 2

what are covalent bonds?

Answer 2

the result from 2 atoms sharing electrons

Question 3

what are physical properties of ionic compounds?

Answer 3

crystalline solids with very high boiling and melting points. separates into cations and anions when dissolved in water

Question 4

what is a polyatomic ion?

Answer 4

a cation or anion containing more than one atom held together with covalent bonds

Question 5

when a cation and anion of equal charge combine…

Answer 5

there is zero overall charge

Question 6

when a cation and anion of unequal charges combine…

Answer 6

use ionic charges to find relative number of each ion needed

Question 7

what do group 1A metals form?

Answer 7

cations (+1 charge)

Question 8

what do group 2A metals form?

Answer 8

cations (+2 charge)

Question 9

what do group 5A nonmetals form?

Answer 9

anions (-3 charge)

Question 10

what do group 6A nonmetals form?

Answer 10

anions (-2 charge)

Question 11

what do group 7A nonmetals form?

Answer 11

anions (-1 charge)