1A: Structure of the Atom

Multiple Choice

Which of the following best describes the main purpose of the periodic table?

• To organize elements based on their atomic structure and properties

• To list all known compounds

• To provide information about chemical reactions

• To display the history of chemistry

Multiple Choice

The area around the nucleus of an atom where the atom's electrons are most likely to be found is called

• electron cloud

• quark

• electron

• nucleus

Multiple Select

Select all the correct statements about the nucleus and electron cloud of an atom.

• The nucleus contains protons and neutrons.

• The electron cloud is positively charged.

• The electron cloud is where electrons are found.

• The nucleus is where the mass of the atom is located.

Multiple Choice

Which of the following statements about subatomic particles is correct?

• Protons are negatively charged and found in the nucleus.

• Neutrons are positively charged and found in the electron cloud.

• Electrons are negatively charged and found in the electron cloud.

• Protons are neutral and found in the nucleus.

Multiple Choice

The three subatomic particles are

• proton, neutron, electron

• proton, nucleus, electron

• protein, neutron, electricity

• proton, neutral, electives

Match

Match the following

• The smallest particle of an element that still has the element's properties

• The subatomic particle is what gives the nucleus an overall positive charge

• This space surrounding the nucleus that has an overall negative charge

• Located in the outermost energy level of the electron cloud, with the most energy

• This subatomic particle contributes to the overall mass but not its charge

Atom

Proton

Electron Cloud

Valence Electron

Neutron

• Atom

• Proton

• Electron Cloud

• Valence Electron

• Neutron