Free Printable Nuclear Atoms

Worksheets

Nuclear Atoms

Total questions: 10

Worksheet time: 5mins

Name

Class

Date

Which scientist became known as "the father of the nuclear age"?

J. J. Thomson

John Dalton

Ernest Rutherford

Niels Bohr

Whose experiment involved shooting small, positively charged alpha particles at a sheet of gold foil?

J.J. Thompson

Max Planck

Ernest Rutherford

Niels Bohr

Rutherford referred to the center of the atom, where the mass was concentrated, as _____

the kernel

the nucleus

the focus

the heart

What particle was used in the gold foil experiment?

Beta Particle

Alpha particle

Gamma ray

High energy electron

Most of the alpha particles went straight through the gold foil. This suggested that....

There is no interference between alpha and gold.

Most of the atom is made up of empty space.

The alpha particles were very tiny.

quantum tunneling exists

the nucleus is positively charged

Some of the alpha particles fired at the gold foil were deflected at angles. This was due to...

reflection of the alpha source when it it the fluorescent screen.

The alpha particles hitting the gold nucleus.

Repulsion forces between the positively charged nucleus and the positively charged alpha particles.

A mis-firing of the alpha source

most of the atom is made up of space

Which scientist came up with the Plum pudding theory?

Hantaro Nagaoka

Ernest Rutherfud

J.J Thomson

Charles Darwin

What did the Plum pudding model suggest about the structure of atoms?

That neutrons and electrons were arranged in a sphere.

that is was a sphere of positive charge throughout which the electrons were distributed

That an atom was filled with neutrons, protons and a sphere of negative charge.

That neutrons, protons and electrons were distributed throughout a sphere.

which two particles are oppositely charged

electron

neutron

proton

anti-neutrino

neutrino

10.

which two subatomic particles have approximately the same mass?