Valence electrons

Energy levels

Metal, nonmetal, and

metalloids

Phases of matter Review

10 10 10 10 10

20 20 20 20 20

30 30 30 30 30

40 40 40 40 40

50 50 50 50 50

Question 1 - 10

• How many valence electrons does Barium (Ba) have?

Answer 1 – 10

• 2

Question 1 - 20

• How many valence electrons does Antimony (Sb) have?

Answer 1 – 20

• 5

Question 1 - 30

• How many valence electrons does iron (Fe) have?

Answer 1 – 30

• variable

Question 1 - 40

• Which one of the following elements have the most valence electrons:

• Fr Ni Bi I

Answer 1 – 40

• I

Question 1 - 50

• What are the groups on the periodic table and how do they organize the elements?

Answer 1 – 50

• The groups are the vertical rows and organize the elements by valence electrons.

Question 2 - 10

• How many electron energy levels does sodium (Na) have?

Answer 2 – 10

• 3

Question 2 - 20

• How many electron energy levels does germanium (Ge) have?

Answer 2 – 20

• 4

Question 2 - 30

• How many electron energy levels does radon (Rn) have?

Answer 2 – 30

• 6

Question 2 - 40

• How many electron energy levels does helium (He) have ?

Answer 2 – 40

• 1

Question 2 - 50

• What are the periods on the periodic table and how do they organize the elements?

Answer 2 – 50

• Periods are the horizontal rows and organize the periods by electron energy levels?

Question 3 - 10

• Is tin (Sn) a metal, nonmetal, or metalloid?

Answer 3 – 10

• metals

Question 3 - 20

• Is selenium (Se) a metal, nonmetal, or metalloid?

Answer 3 – 20

• nonmetal

Question 3 - 30

• Contrast two physical properties of metals and nonmetals

Answer 3 – 30

• Metals Nonmetals• Positive ions Negative ions• Shiny Dull• Malleable Brittle• Good conductor Poor conductor

Question 3 - 40

• Which metalloid is essential for making computer chips?

Answer 3 – 40

• Silicon (Si)

Question 3 - 50

• How do we use the periodic table to determine the phase of matter for the elements?

Answer 3 – 50

• Gases are in the gun. Group 18 is the barrel. N, O, and F are the handle. Chlorine is the trigger. H is the ejected casing.

• Liquids are Br and Hg. • Everything else is a solid

Question 4 - 10

• What phase of matter is nitrogen (N)?

Answer 4 – 10

• Gas

Question 4 - 20

• What phase of matter in lithium (Li)?

Answer 4 – 20

• Solid

Question 4 - 30

• Where are the gases located on the periodic table? Describe the parts?

Answer 4 – 30

• Group 18 is the barrel.• The handle is N, O, & F• The trigger is Cl.• H is the ejected casing.

Question 4 – 40

• What are the liquids on the periodic table and what memory tricks do we use to remember them?

Answer 4 - 40

• The liquids are bromine and mercury.

• Bromine is in front of the trigger and mercury is the only liquid metal.

Question 4 - 50

• How do we identify the solids on the periodic table?

Answer 4 – 50

• Everything that is not a gas or a liquid.

Question 5 - 10

• An irregular object with a mass of 105 g is placed in a graduated cylinder with a volume of 50 mL. The volume in the cylinder rises to 75 mL. What is the density of the object?

Answer 5 – 10

• D = m/V• m = 105 g• V = 75 mL – 50 mL = 25 mL• D =m / V – 105 g / 25 mL = 4.2 g/mL

Question 5 - 20

• What is the density of a cube with 5 cm sides? The mass of the cube is 750 g.

Answer 5 – 20

• D = m / V• m = 750 g• V = 5 cm x 5 cm x 5 cm = 125 cm3 • D = m / V = 750 g / 125 cm3 = 6 g/ cm3

Question 5 - 30

• The molecules in a sample of matter are separated and moving around independently. What phase of matter is represented?

Answer 5 – 30

• Gas

Question 5 - 40

• What is the boiling / condensation point of the substance represented in the below heating curve?

Answer 5 – 40

• 95 °C

Question 5 - 50

• What is the name and atomic mass of the following atom?

• Neutrons 8• Protons 6• Electrons 6

Answer 5 – 50

• Carbon - 14