The Discovery Of The Nucleus

Question 1

True or False, all Atoms consist of empty space.

Answer 1

True.

Question 2

What is the Instrument used to detect Radioactivity?

Answer 2

Geiger Counter.

Question 3

What Particle was used in the Gold Foil experiment?

Answer 3

Alpha.

Question 4

Almost all of the Mass of an Atom is found in what part?

Answer 4

The Nucleus.

Question 5

Most of the Alpha particles went through the Gold Foil. This suggests that…

Answer 5

Most of the Atom is made up of empty space.

Question 6

Some of the Alpha particles fired at the Gold Foil were deflected at angles. This was due to…

Answer 6

Repulsion forces between the positively charged Nucleus and the positively charged Alpha particles.

Question 7

Rutherford’s Gold Foil scattering experiment indicated that…

Answer 7

Positive charges are concentrated in a very small Core at the Atom’s centre.

Question 8

What did the Plum Pudding suggest about the Structure of an Atoms?

Answer 8

That it was a Sphere of positive charge throughout which the Electrons were distributed.