Unit 2 Matter Unit Test

Unit 2 Matter Test Review

Complete this review as many times as you like to master these concepts.

Vocabulary Review

Matter

has mass (weight) and takes up space (volume)

Atom

• smallest particle of basic matter

• smallest size an element can get and still act like an element

Element

• A "flavor" or type of an atom

• Formed of only ONE type of atom

• Describes one or more of the same type of atom

Periodic Table of the Elements

• arranges ALL of the known elements in the universe

• describes ALL of the known elements in the universe

• 
  

Molecule

• More than one atom stuck together

• A combination of one or more types of atoms

• Can be all of the same element

• Can also be different elements

Compound

• Two or more different atoms stuck together

• At least 2 types of elements

• A new substance with new properties

• 
  

What do you remember?

Questions coming up next...

Multiple Select

What are these? Check all answers that apply.

• molecules

• atoms

• elements

• compounds

Oxygen Molecules

• one type of atom = this is an element

• 2 or more atoms stuck together = this is a molecule

Multiple Select

What are these? Check all answers that apply.

• molecules

• atoms

• elements

• compounds

Water Molecules

• Two or more atoms stuck together = molecule

• Two or more TYPES of elements stuck together = compound

Multiple Select

What are these? Check all answers that apply.

• molecules

• atoms

• elements

• compounds

Atoms or Elements

• Not stuck to each other = atoms

• All the same type of atom = elements

Multiple Select

Select the substances that are compounds.

• CO₂

• H₂O

• O₂

• He

Compounds

• Contain DIFFERENT types of elements

• Are 2 or more element abbreviations TOUCHING

• Often have tiny numbers: CO₂

Compounds

aren't listed on the periodic table

Multiple Choice

The definition of matter is

• has mass and takes up space

• one type of atom

• two or more atoms stuck together

• two or more different elements stuck together

Multiple Choice

An atom is

• Something that has mass and takes up space

• The smallest particle of basic matter

• A combination of one or more types of atoms

• Formed of only one type of atom

Multiple Choice

A molecule is

• Something that has mass and takes up space

• The smallest particle of basic matter

• Two or more atoms stuck together

• Formed of only one type of atom

Multiple Choice

A compound is

• Two or more DIFFERENT atoms stuck together

• The smallest particle of basic matter

• Two or more atoms stuck together

• Formed of only one type of atom

Multiple Choice

An element is

• The most basic unit of matter

• The smallest particle of basic matter

• Two or more atoms stuck together

• Formed of only one type of atom

The Atomic Number

• The top number is the atomic number

• The atomic number is how many protons an element has

• Each element has a unique atomic number

Multiple Choice

The type of element is determined by the number of

• protons

• neutrons

• electrons

• molecules

Different Elements

have different numbers of PROTONS

Multiple Choice

The atomic number tells us

• the atomic mass

• the number of protons

• the number of electrons

• the number of neutrons

Multiple Choice

Which element has 4 protons?

• Hydrogen

• Helium

• Lithium

• Beryllium

The atomic number is the number of protons.

Elements

EVERY element in the universe is listed on the periodic table.

If something isn't on the periodic table, it isn't an element.

Period

• The period is the number next to the ROW 👉

Group

• The group is the number above the COLUMN 👇

• Similar chemical properties

What do you remember?

Questions coming up next...

Multiple Choice

Verticle families share similar

• names

• properties

• atomic mass

• density

Multiple Choice

Which element is in group 4 period 5?

• Zr - Zirconium

• Nb - Niobium

• C - Carbon

• Na - Sodium

Remember

periods are rows and groups are columns.

Multiple Choice

Where are most of the nonmetals found on the periodic table?

• left

• right

• middle

• bottom

Multiple Choice

Where are most of the metals found on the periodic table?

• left

• right

• left and middle

• middle

Multiple Choice

Where are the metalloids found on the periodic table?

• left

• right

• in between the metals and nonmetals

• in the bottom 2 rows

Multiple Choice

Most of the elements on the periodic table are

• hallogens

• metals

• noble gasses

• nonmetals

Metals

• Lustrous (shiny)

• Good conductors of heat and electricity

• High melting point

• High density (heavy for their size)

• Malleable (can be rolled or hammered into flat sheets)

• Ductile (can be pulled into wires)

• Usually solid at room temperature (an exception is mercury)

Ductile

Can be pulled into wire

Malleable

Hammered or rolled into sheets

Nonmetals

• Not lustrous (dull appearance)

• Do not conduct heat and electricity well

• May be solids, liquids or gases at room temperature

• Brittle

What do you remember?

Questions coming up next...

Multiple Select

Select all the words that describe metals

• ductile

• malleable

• conducts electricity

• brittle

Multiple Select

Check all that apply: Wire is made out of metal because metal

• is ductile

• conducts electricity

• is malleable

• is common

Multiple Choice

Something that is malleable

• can be made into a flat sheet

• can be pulled into a wire

• can be melted

• can be mailed

Multiple Choice

A group of elements have no luster, have no conductivity, and are brittle. What is the classification of these elements?

• metals

• nonmetals

• metalloids

• actinoids

Multiple Choice

An element doesn't conduct heat or electricity well. It is likely a

• metal

• nonmetal

• metalloid

• transition metal

Multiple Choice

These elements look like steps on the periodic table. They share properties of both metals and nonmetals. Computer chips contain elements from this family.

• metals

• nonmetals

• metalloids

• noble gasses

Pure Substance

ONE type of element

OR

ONE type of compound

Mixture

A COMBINATION of elements and/or compounds

Homogenous Mixtures

• Evenly organized

• Solution (think tea or kool-aid)

• Colloid (whipped cream or mayonaise)

Heterogenous Mixtures

• Scattered and chaotic

• Suspension

• salad dressing or trail mix

What do you remember?

Questions coming up next...

Multiple Choice

Lemonade contains sugar molecules, lemon ingredients, and water molecules. Lemonade is a

• mixture

• colloid

• compound

• element

Multiple Select

Select the substances that are homogeneous mixtures

• colloids

• solutions

• water

• suspensions

• oxygen

Multiple Select

Select the substances that are heterogenous mixtures

• suspensions

• salad dressing

• trail mix

• CO₂

Multiple Select

Select the substances that are pure substances

• an element

• a compound

• CO₂

• O₃

• salt water