Historical development of an atom

All matter is made of

• energy

• electrons

• atoms

• compounds

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

• Democritus

• Aristotle

• Dalton

• Thomson

Who's incorrect view of matter was predominate for over 2000 years?

• Democritus

• Dalton

• Aristotle

• Bohr

Who created the solid sphere model of the atom?

• Dalton

• Thomson

• Bohr

• Rutherford

Who created the plum pudding model of the atom?

• Rutherford and the plums were protons

• Rutherford and the plums were electrons

• Thomson and the plums were protons

• Thomson and the plums were electrons

The cathode-ray tube was used to discover the ____ by ____.

• Electron by Thomson

• Electron by Ruthefeord

• Proton by Thomson

• Proton by Rutherford

Rutherford discovered there were three main types of radiation. Which of the three types was used in his famous gold foil experiment?

• alpha

• beta

• gamma

• all three types

Why did most of the radiation pass through the gold foil in the experiment?

• Nucleus is large and most of atom is empty space.

• Nucleus is large and little of atom is empty space.

• Nucleus is small and most of atom is empty space.

• Nucleus is small and little of atom is empty space.

Jimmy Neutron is the nick name for which scientist that discovered the neutron?

• Chadwick

• Rutherford

• Bohr

• Thomson

• Moseley

The periodic table is currently organized based on:

• atomic number and always has been.

• atomic mass and always has been.

• atomic number but used to be organized by atomic mass.

• atomic mass but used to be organized by atomic number.