Unit 6 Chemistry Test

What does the 6 represent?

• atomic mass

• atomic number

• element name

• chemical symbol 

The vertical (up and down) columns in the Periodic Table are called

• groups

• towers

• periods

• atomic numbers

What does 12.011 represent?

• atomic mass

• atomic number

• element name

• chemical symbol 

Tags

NGSS.MS-PS1-1

The horizontal (side to side) rows in the Periodic Table are called

• groups

• families

• periods

• atomic numbers

Which of the following is not a compound?

• HCl

• Cl

• NaCl

• CO2

Tags

NGSS.MS-PS1-1

Which of the following represents an element?

• H₂O

• H₂

• NaCl

• CaCO₃

Tags

NGSS.MS-PS1-1

What cannot be broken down into other substances?

• Compound

• Mixture

• Solids

• Element

What is made up two or more elements that are chemically combined?

• Element

• Mixture

• Compound

• Solids

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

• Manganese

• Sulfur

• Silicon

• Neon

An atom is electrically neutral because

• neutrons balance the protons and electrons.

• nuclear forces stabilize the charges.

• the numbers of protons and electrons are equal.

• the numbers of protons and neutrons are equal.