Atomic and Nuclear Review

Which philosopher believed all matter consisted of extremely small particles that could not be divided?

• Democritus

• Aristotle

Which scientist came up with the Law of Conservation of Mass?

• Lavoisier

• Proust

Which scientists came up with the Law of Definite Proportions?

• Lavoisier

• Proust

What was Dalton's model of the atom?

• Sphere

• Plum Pudding

• Marble in a Football Field

• Planetary

What was Thomson's model of the atom?

• Sphere

• Plum Pudding

• Marble in a Football Field

• Planetary

What was Rutherford's model of the atom?

• Sphere

• Plum Pudding

• Marble in a Football Field

• Planetary

What was Bohr's model of the atom?

• Sphere

• Plum Pudding

• Marble in a Football Field

• Planetary

Which of the following parts of Dalton's atomic theory are still considered to be TRUE?

• All matter is composed of atoms

• All atoms of the same element have the same mass, size, and other properties

• Atoms cannot be subdivided, created, or destroyed

• Atoms of different elements combine in simple whole-number ratios to form compounds

• In chemical reactions, atoms combine, separate or rearrange

The Crookes Tube was later utilized to discover which subatomic particle?

• Proton

• Neutron

• Electron

• Quark

Who discovered the electron?

• Democritus

• Dalton

• Thomson

• Rutherford