Atomic Structure Quiz

What are atoms made of?

• Energy and matter

• Cells and tissues

• Molecules and compounds

• Protons, neutrons, and electrons

Tags

NGSS.MS-PS1-1

When do scientists think the first atoms were formed?

• 13,700 years ago

• 13,700,000 years ago

• 13,700,000,000 years ago

Tags

NGSS.MS-PS1-1

Protons and neutrons together form which part of an atom?

• Nucleus

• electron cloud

• particles

Tags

NGSS.MS-PS1-1

Which atomic particle has a positive charge?

Where are electrons located in an atom?

• Proton orbit

• Nucleus

• Neutron path

• Electron cloud

Which atomic particle has a negative charge?

How does the weight of an electron compare to the weight of a proton or neutron?

• The electron is heavier

• The electron is ligheter

• The electron is equal

• Cannot be determined

True or False: Atoms are stationary and do not move

• True

• False

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-1

The weight of an atom is 5.45 x 10 -4 amu. What does this number look like when it is written is standard form instead of scientific notation?

• 5,450,000

• 0.545

• 0.000545

Substances that have only one kind of atom are called:

• molecules

• elements

• compounds