8th Grade Chemistry

Which subatomic particles are in the nucleus? Check all that apply.

• Electrons

• Neutrons

• Protons

• None of the above

Where are electrons located in an atom?

• Outside the nucleus

• Inside the nucleus

• Electrons don't exist in atoms

What type of charge does a proton have?

• Positive

• Negative

• No charge

What type of charge does an electron have?

• Positive

• Negative

• No Charge

Tags

NGSS.MS-PS2-3

What type of charge does a neutron have?

• Positive

• Negative

• No charge

Is water a compound or element?

• Element

• Compound

Tags

NGSS.MS-PS1-1

Which of the following describes water?

• 2 Hydrogen Atoms and 2 Oxygen Atoms

• 2 Hydrogen Atoms and 1 Oxygen

• 1 Hydrogen Atom and 2 Oxygen Atoms

• 1 Hydrogen Atom and 1 Oxygen Atom

Tags

NGSS.MS-PS1-1

What does the atomic number tell you?

• The number of protons in the nucleus

• The element's place on the periodic table

• Both answers are correct.

• Neither answer is correct.

How do you find the number of neutrons in an atom?

• It is the same as the atomic mass.

• It is the same as the atomic number.

• Round the atomic mass and subtract the number of protons.

• You guess.

Is density a physical or chemical property?

• Physical

• Chemical