Physical Science-Chapters 15-17 Review

Conducted gold foil experiment which proved that atoms are mostly empty space.

• Democritus

• Bohr

• Rutherford

• Dalton

Thee atom is a positive sphere with negative electrons embedded in it, like a plum pudding.

• Bohr

• Dalton

• Thompson

• Chadwick

Electrons assume only certain orbits around the nucleus, resembling the solar system.

• Bohr

• Chadwick

• Millikan

• Dalton

Matter is made of atoms, which are indivisible and indestructible, and all atoms of a given element are identical in mass and properties.

• Rutherford

• Thompson

• Aristotle

• Dalton

Conducted gold foil experiment which proved that atoms are mostly empty space. 

• Democritus

• Rutherford

• Thompson

• Mendeleev

What is the atomic number of Aluminum?

What is the atomic number of Bromine?

How many protons does Calcium have?

How many protons does Xenon have?

How many electrons does Iron have?