Atomic Theory and Structure

What type of atomic model is represented in the picture?

• Bohr Model

• Plum pudding model

This atomic model was proposed by which person:

• Bohr

• J.J. Thompson

• Rutherford

• Democritus

Which was NOT true of Dalton's Theory?

• All elements are composed of atoms

• Atoms are divisible

• Compounds are formed by joining two or more atoms

• Atoms of the same element are exactly alike

This picture represents the model of which scientist:

• John Dalton

• Ernest Rutherford

• Niels Bohr

• J.J. Thompson

Which scientist discovered the atom is made up of mostly empty space with small, dense, positively charged nucleus?

• Niels Bohr

• Ernest Rutherford

• J.J. Thompson

• John Dalton

Which scientist's model proposed each electron in a specific energy level?

• Ernest Rutherford

• Niels Bohr

• John Dalton

• J.J. Thompson

What is the most current atomic model?

• Plum Pudding Model

• Bohr Model

• Wave Model

• Billiard Ball Model

Which electrons have the highest energy?

• The electrons closer to the nucleus

• The electrons on the very outside of the electron cloud

• The electrons involved in bonding

• The free electrons

What two particles add together to calculate the mass number?

• protons and electrons

• Neutrons and electrons

• protons and neutrons

________ is anything that has mass and takes up space.

• matter

• electricity

• energy

• light