Dr. Potts - Q1 Test Review

Air is:

• An element

• A compound

• A mixture

• None of these

Most of the mass of an atom is because of the total mass of the .......

• The electrons and protons

• The protons & neutrons

• The electrons and neutrons

• The electron cloud

Tags

NGSS.MS-PS1-1

In which region would the nonmentals be found?

• 1
• 4
• 3
• 5

The blue elements are called 

• metals
• nonmetals
• metalloids
• noble gases

Tags

NGSS.HS-PS1-1

Pure substances include:

• Elements

• Homogeneous Mixtures

• Compounds

• Heterogeneous Mixtures

An element is?

• Chemically combined

• Pure substances that can be broken down

• Pure substances that cannot be broken down into simpler substances

• One or more elements chemically combined.

If Oxygen has an atomic mass of 16. What does this tell you about oxygen?

• the number of electron shells in an oxygen atom

• the number of protons and neutrons in the nucleus of an oxygen atom

• the number of electrons orbiting the nucleus of an oxygen atom

• the number of electron shells in an oxygen atom

Tags

NGSS.MS-PS1-1

• Pure Substance

• MIxture

Tags

NGSS.MS-PS1-1

The horizontal rows on the PTE are

• The groups, The group # tells how many electron shells are required to house the electrons of one atom of each element.

• The families, The family # tells how many electron shells are required to house the electrons of one atom of each element.

• The period. It list elements that are similar in chemical and physical properties

• The period, The period # tells how many electron shells are required to house the electrons of one atom of each element.

Nickel has the chemical symbol Ni and atomic number 28. It is a silvery-white metal and cannot be broken down physically or chemically into a more simple substance. Nickel is a ___________________ .

• element

• compound