Lect 9/30

Question 1

A1 = what family?

Answer 1

Alkali metals

Question 2

A2 = what family?

Answer 2

Alkali earth metals

Question 3

A7 (VII) = what family?

Answer 3

halogens

Question 4

A6 (VI) = what family?

Answer 4

chalcogens (greek for copper; chalcos)

Question 5

A5 (V) = what family?

Answer 5

pnicogens

Question 6

A4 (IV) = what family?

Answer 6

The carbon family

Question 7

A8 (VIII) = what family?

Answer 7

noble gasses

Question 8

B1 = what family?

Answer 8

noble metals OR conage metals

Question 9

What are ions?

Answer 9

electrically charged particles of electrically neutral substances

Question 10

of protons = _______ electrons

Answer 10

same number of electrons

Question 11

Atoms vs polyatoms

Answer 11

• atoms: one type of atom
• polyatoms: many types of atoms

Question 12

Metals lose electrons to become ____

Answer 12

cations; positive ions

Question 13

nonmetals gain electrons to become ____

Answer 13

anions; negative ions

Question 14

What does IUPAC stand for?

Answer 14

International Union of Pure and Applied Chemistry

Question 15

What is IUPAC?

Answer 15

Governing body for chemistry

Question 16

What does the suffix -ide mean?

Answer 16

A negatively charged nonmetal that is present singly

Question 17

What is formula unit / empirical formula?

Answer 17

simplest whole number ratio of ions present in an ionic compound.

Question 18

What 6 metals can have more that 1 charge?

Answer 18

• Copper (Cu)
• Tin (Sn)
• Cobalt (Co)
• Lead (Pb)
• Bismuth (Bi)
• Antimony (Sb)

Question 19

When is the -ous, -ic convention used?

Answer 19

when one type of element has different charges.

Question 20

-ous =
- ic =

Answer 20

-ous = lower charge
-ic = higher charge