Atoms 2025 Honors

Multiple Choice

Which of the following is NOT a characteristic of matter?

• Has mass

• Takes up space

• Is made of atoms

• Is visible

​SUMMARY:

​LABEL THE IMAGE on your page

Multiple Select

Which of the following are subatomic particles found in an atom?

• Proton

• Neutron

• Electron

• Photon

Multiple Choice

Which subatomic particle has no charge?

• Electron

• Proton

• Neutron

• Nucleus

Multiple Choice

Based on the table, where are electrons located in an atom?

• Nucleus

• Electron cloud

• Proton shell

• Neutron zone

Multiple Select

The nucleus contains which particles?

• the proton

• the electron

• the neutron

• the megatron.

Labelling

Label this atom's particles.

Drag labels to their correct position on the image

Nucleus

Neutrons

Electrons

Protons

Open Ended

Explain why the model of an atom shown is considered a poor representation. What are its limitations?

Multiple Choice

Which subatomic particle determines what an element is?

• Protons

• Neutrons

• Electrons

• Quarks

Match

What element are each of these atoms? Record these examples on your notes sheet

Carbon

Atomic #6

Helium Atomic #2

Boron Atomic #5

• Carbon

  Atomic #6

• Helium Atomic #2

• Boron Atomic #5

Multiple Choice

Where is most of the mass of an atom found?

• it is evenly distributed throughout the atom

• in the nucleus

• in the electron cloud

• in the protons

Multiple Choice

Which of the following statements about isotopes is correct?

• Isotopes have the same number of protons but different numbers of neutrons.

• Isotopes have different numbers of protons and electrons.

• Isotopes have the same atomic mass but different atomic numbers.

• Isotopes are always stable.

Dropdown

How many neutrons are there in the most common isotope of Boron? ​

Select answer

Multiple Select

Which of the following are true about ions?

• Ions are atoms that have gained or lost electrons.

• Ions always have a positive charge.

• Ions have the same number of protons and electrons.

• Ions are formed when atoms change their net electric charge.

Open Ended

What are the main points of John Dalton's atomic theory published in 1808?

Multiple Choice

Which scientist is credited with discovering the neutron, and how did this discovery impact the atomic model?

• Bohr; introduced energy levels

• Chadwick; added neutrons to the nucleus

• Thomson; discovered electrons

• Rutherford; discovered the nucleus