STAAR Practice

Using the diagram, how many NEUTRONS does this atom have?

• 4

• 5

• 6

• 7

Tags

NGSS.MS-PS1-1

Using the diagram, how many VALENCE ELECTRONS does this atom have?

• 4

• 5

• 6

• 7

Tags

NGSS.MS-PS1-1

This element is:

• Highly reactive because it has 7 electrons

• Highly reactive because it has the same number of protons and neutrons

• Non-reactive because it has neutrons

• Somewhat reactive because it has 5 valence electrons

Tags

NGSS.MS-PS1-1

Number of protons in the nucleus.

• Atomic Number

• Atomic Mass

• Period

• Group

Tags

NGSS.MS-PS1-1

The highlighted portion of the equation is the:

• Reactants

• Products

• Yield

• Coefficient

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

The highlighted portion of the equation is the:

• Reactants

• Products

• Yield

• Coefficient

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

The highlighted portion of the equation is a:

• Reactants

• Subscript

• Yield

• Coefficient

What is the chemical formula for water?

Tags

NGSS.MS-PS1-1

Which of the following is a renewable energy source?

• Coal

• Natural Gas

• Solar Energy

• Nuclear Energy

What is the primary gas found in Earth's atmosphere?

• Oxygen

• Nitrogen

• Carbon Dioxide

• Hydrogen