Nuclear Decay And Particles

Question 0

Alpha particle contains

Answer 0

2 protons and 2 neutrons

Question 1

Define alpha particle

Answer 1

Particle emitted by radioactive source

Question 2

Define Beta particle

Answer 2

Electron from breaking apart of neutron

Question 3

Define gamma ray

Answer 3

High energy photon emitted by radioisotope

Question 4

Define positron

Answer 4

Particle with mass of electron but positive charge

Question 5

Positrons charge

Answer 5

Positive

Question 6

Half life

Answer 6

Time needed for half of nuclei of radioisotope to decay to products

Question 7

What is fission

Answer 7

Nucleus splits

Question 8

What is fusion?

Answer 8

Nuclei combine

Question 9

What is alpha particle made of?

Answer 9

2 protons and 2 neutrons forming helium nuclei

Question 10

Which rays have most penetrating power?

Answer 10

Gamma rays

Question 11

Which particles are electrons?

Answer 11

Beta particles

Question 12

What can stop gamma rays?

Answer 12

Lead and concrete

Question 13

What are unstable nuclei?

Answer 13

Radio isotopes

Question 14

What radiation are gamma rays?

Answer 14

Electromagnetic radiation

Question 15

What can stop alpha decay?

Answer 15

Cloth or paper

Question 16

Why is nuclear fission not practiced?

Answer 16

Extremely high temperatures are needed

Question 17

What are the fastest moving electrons?

Answer 17

Beta particles

Question 18

Which particle has double positive charge?

Answer 18

Alpha particles

Question 19

Which rays have no mass or atomic #?

Answer 19

Gamma rays

Question 20

Which particle changes mass# and Tomic# in radioactive decay, is a helium nucleus?

Answer 20

Alpha particles

Question 21

Which rays are electromagnetic radiation?

Answer 21

Gamma rays

Question 22

When an electron gains an amount of energy where does it move from?

Answer 22

It moves from Ground to excited