Semester 1 Review Part 2

What best describes the structure of an atom as we know it now?

• Protons and neutrons in a nucleus surrounded by electrons

• Protons, neutrons, and electrons packed in a dense ball

• Electrons and neutrons in a nucleus surrounded by protons

• A thin shell of particles with nothing inside

An atom is mostly . . .

• Solid neutrons

• Empty space

• Liquid

• Metal

All matter is made of . . .

• Energy

• Atoms

• Rice

• Hydrogen

Most of the mass of an atom is in . . .

• The electron shell

• Between the nucleus and the electrons

• The nucleus

• The compounds

Which thing is NOT part of an atom?

• Electron

• Neutron

• Ganglion

• Proton

If an electron has more energy, it will be . . .

• Further from the atom’s nucleus

• Closer to the atom’s nucleus

• Inside the nucleus

• You can’t tell from this information

Which statement is correct?

• Electrons and protons are positive, neutrons are negative

• Electrons are negative, protons are positive, neutrons are neutral

• Electrons are negative, protons are neutral, neutrons are positive

• Electrons are positive, protons are negative, neutrons are neutral

Part 1 is . . .

• Protons

• Electrons

• Neutrons

• Nucleus

Part 2 is . . .

• Proton

• Electron

• Neutrons

• Nucleus

In the diagram above, Container 1 is a(n)

• Atom

• Compound

• Mixture

• Element