Atoms- Subparticles and Models

Who was the first person to come up with the idea of the “atom?”

• Bohr

• Dalton

• Democritus

• Aristotle

J.J. Thomson discovered which atomic particle?

• Nucleus

• Proton

• Neutron

• Electron

Who developed the "chocolate chip cookie" model of the atom?

• Ernest Rutherford

• John Dalton

• Niels Bohr

• Werner Heisenberg

• J.J. Thomson

What is at the center of every atom?

• An electron

• A molecule

• A nucleus

• A compound

Which two particles make up the nucleus of an atom?

• Protons and Electrons

• Neutrons and Electrons

• Molecules and Compounds

• Protons and Neutrons

In an atom, what is the number of protons equal to?

• The number of neutrons

• Atomic number

• The number of molecules.

• Atomic mass

The particles with no charge in an atom are the _______.

• electrons

• protons and neutrons

• protons

• neutrons

The particles orbit around the nucleus of an atom. What are they called?

• neutrons

• electrons

• protons

• photons

Which word would closely define the term "atomos"?

• Indivisible

• Incredible

• Independent

• Indelible

He proposed the first formal atomic theory of the atom.

• Niels Bohr

• John Dalton

• JJ Thomson

• Ernest Rutherford