Lesson 9

Question 0

A beta particle forms when one neutron disintegrates into one proton and one __

Answer 0

Electron

Question 1

A __ ray is a high electromagnetic wave

Answer 1

Gamma

Question 2

An isotope or carbon has an atomic mass number of 14 and an atomic number of 6. This carbon has __ neutrons

Answer 2

8

Question 3

__ radiation has the weakest penetrating power

Answer 3

Alpha

Question 4

The __ __ equals the number of protons in the nucleus of an atom

Answer 4

Atomic number

Question 5

__ of an atom have the same number of protons but a different number of neutrons

Answer 5

Isotopes

Question 6

During alpha decay, an atom emits a helium __

Answer 6

Nucleus

Question 7

Nuclear __ is carried on by the sun

Answer 7

Fusion

Question 8

Nuclear __ is what happens at nuclear power plants

Answer 8

Fission

Question 9

An alpha particle has a Mass of

Answer 9

4

Question 10

E=mc2, mass of kilograms of uranium in 1 fuel pellet. 1 pellet = 1.08 x 10(10) joules. Speed of sound(=c) = 3 x 10(8) meters per second

Answer 10

1.08 x 10(10) = m( 3 x 10(8))squared

M= 1.2 x 10(7)

Question 11

Radioactive half life

Answer 11

Time required for half of a radioactive sample to decay