Atomic Models

Which of the following is a negatively charged subatomic particle?

• Electron
• Proton
• Neutron
• Quark

The majority of an atom's mass exists where?

• In the nucleus
• In the electron cloud
• In the space between the nucleus and the electrons
• In the neutrons

What does the nucleus of an atom contain?

• Electrons and neutrons
• Protons and neutrons
• Neutrinos and positrons
• DNA and RN

Tags

NGSS.MS-PS1-1

This particle is found in the nucleus and has no charge

• Neutron
• Proton
• Electron

What contribution did John Dalton make to the atomic theory?

• He discovered that every atom was positively charged
• He discovered that every element consisted of one type of atom
• He discovered that atoms had nuclei
• He discovered that atoms could be divided into smaller parts

Tags

NGSS.MS-PS1-1

This was the first model of the atom ever proposed. It was simple and described atoms as tiny spheres that could not be broken down into smaller pieces.

• Democritus's model of the atom
• The "Plum Pudding Model" of the atom
• The "Rutherford Model" of the atom
• The "Quantum Mechanical Model" of the atom

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NGSS.MS-PS1-1

Which scientist discovered the electron?

• Bohr
• Rutherford
• Dalton
• Thomson

Which scientist thought that electrons orbit the nucleus in specific rings?

• Bohr
• Rutherford
• Dalton
• Thomson

The atomic mass is dependent on which two subatomic particles?

• Protons and electrons
• Protons and neutrons
• Neutrons and electrons
• Electrons and the nucleus

Which is an electron?

• A
• B
• C

Tags

NGSS.MS-PS1-1