Earth Chemistry Review

What is the simplest form of matter?

• Element

• Compound

• Mixture

• Molecule

The smallest unit of matter that keeps its chemical properties. It is Greek meaning "uncuttable."

• Molecule

• Compound

• Element

• Atom

Tags

NGSS.MS-PS1-1

What does the green dot represent?

• electron

• neutron

• nucleus

• proton

Tags

NGSS.MS-PS1-1

What does the yellow circle represent?

• electron

• neutron

• nucleus

• proton

Tags

NGSS.MS-PS1-1

What do the red and blue dots represent?

• one is the electron and the other is a proton

• one is a neutron and the other is an electron

• one is a proton and the other is a neutron

• one is an up quark and the other is a down quark

Tags

NGSS.MS-PS1-1

What is the charge of a proton?

• Positive

• Negative

• Neutral

• It depends upon the atom it is found.

Tags

NGSS.MS-PS1-1

What is the charge of a neutron?

• Positive

• Negative

• Neutral

• It depends upon the atom it is found.

Tags

NGSS.MS-PS1-1

What is the charge of an electron?

• Positive

• Negative

• Neutral

• It depends upon the atom it is found.

Tags

NGSS.MS-PS1-1

NGSS.MS-PS2-3

What is zinc's atomic number?

• 30

• 65

• 65.390

• 35

Tags

NGSS.HS-PS1-1

How many protons does an atom of zinc have?

• 30

• 65

• 65.390

• 35

Tags

NGSS.MS-PS1-1