Atomic Structure/Theory Flashcard

Front

What is the charge of a proton?

Back

Positive (+)

Front

Who proposed that all elements are made of atoms and that atoms of the same element are identical?

Back

John Dalton

Front

What experiment did Rutherford conduct to discover the nucleus of the atom?

Back

Gold Foil Experiment

Front

What two subatomic particles are found in the nucleus of an atom?

Back

Protons and Neutrons

Front

Which two scientists proposed atomic models that depicted atoms as solid spheres?

Back

Democritus and Dalton

Front

What is the charge of a neutron?

Back

Neutral (0)

Front

What is the charge of an electron?

Back

Negative (-)

Front

Who discovered the electron?

Back

J.J. Thomson

Front

What is the main idea of Dalton's atomic theory?

Back

Atoms are indivisible and make up all matter.

Front

What did Rutherford's model of the atom suggest about the structure of the atom?

Back

Atoms have a small, dense nucleus surrounded by electrons.