Unit 1 Review

What physical properties are used to classify elements as metals, non-metals, or metalloids?

• Color, smell, physical state

• Reactivity, streak, hardness

• Ability to burn, mass, density

• Luster, conductivity, malleability

The table shows the properties of four elements. Which element in the table is classified as a metal?

• Manganese
• Sulfur
• Silicon
• Neon

Which of the following is a property of a non-metal?

• Conducts electricity and heats well

• Can be hammered into thin sheets

• Is brittle and breaks easily

• Has a shiny, metallic luster

All of the following are properties used to classify elements as metals, non-metals, and metalloids EXCEPT —

• texture

• conductivity

• luster

• malleability

All of these properties describe metals EXCEPT —

• malleable

• conductor

• brittle

• shiny

Density is calculated by dividing the mass of a substance by its -

• volume.

• weight.

• length.

• temperature.

The table provided shows the masses and volumes of four rocks. Which rock has the greatest density?

• Rock 1
• Rock 2
• Rock 3
• Rock 4

Determine the density of a sample of an unknown substance with a volume of 5 cm³ and a mass of 20 grams.

• 4 g/cm3
• 10 g/cm3
• 16 g/cm3
• 20 g/cm3

Which of the following is the correct calculation for determining the density of an object with a mass of 54 g and a volume of 6 mL?

• 6 ÷ 54

• 6 x 54

• 54 ÷ 6

• 6 + 54

A rock’s density is 5 g/cm3. Determine the mass of the rock if it has a volume of 20 cm3.

• 4 g

• 20 g

• 50 g

• 100 g