Particles

Question 1

N

Answer 1

Proton number

Question 2

A

Answer 2

Mass number

Question 3

Define isotope

Answer 3

Forms of the same element with the same number of protons but a different number of neutrons

Question 4

Specific charge

Answer 4

Value of charge divided by the mass mesuref in C/Kg

Question 5

Strong nuclear force

Answer 5

Holds neucleus together acts between P-P N-P N-N
Attractive at 3fm repsive at 0.5fm
experienced by hadraons with gluon exchange particle

Question 6

Alpha radiation

Answer 6

When nucleus had too many protons to be stable releases helium nucleus

Question 7

Beta minus radiation occurs ?

Answer 7

Too many neutrons , breaks down neutron into proton, electon and anti electron neutrino. The electron is shot out and is called a β particle

Question 8

What particle doesnt have an anti particle ?

Answer 8

Photon

Question 9

What is an anti particle

Answer 9

Same mass equal but opposite charge

Question 10

Photon key facts

Answer 10

Zero rest mass

All epectromagnetic radiotion consists of photons

Question 11

Particle mass eqsn

Answer 11

Particle mass = rest mass + mass of Ke

Question 12

Particle energy equasion

Answer 12

REST energy(due to mass) + Ke

Question 13

Particle production

Answer 13

If particles have enought energy it is possible to produce a particle with a non zero rest mass

Question 14

Pair production equasion

Answer 14

Rest energy + Ke before = rest energy + Ke of all after

Question 15

Electromagnetic 
particle effected:
Range:
Relative strength:
Exchange:

Answer 15

All particles with a charge
Infinite range
10^-2 strength
Photon exchange particle

Question 16

Gravitational force

particle effected:
Range:
Relative strength:
Exchange

Answer 16

All particles with mass
Infinite range
10^-38
Graviton(undiscovered)

Question 17

Strong force

particle effected:
Range:
Relative strength:
Exchange

Answer 17

Hadrons affected
3fm
1
Gluon

Question 18

Weak force

particle effected:
Range:
Relative strength:
Exchange

Answer 18

All fundimentl
10^-18m
10^-5
ω+,ω,z

Question 19

Beta plus decay equation

Answer 19

Proton —> neuton + β+ + anti-νe

W+ exchange

Question 20

Beta minus decay

Answer 20

Neutron —> proton + β- + anti-νe

W- exchange

Question 21

Electron capture

Answer 21

P + e- —> n + Ve

W+ exchange

Question 22

Electron proton collision

Answer 22

e- + p —> n + Ve

W- exchange

Question 23

Define fundimental particle

Answer 23

A fundimental particle is ine which cant be divided into anything smaller

Question 24

Quarks name

Answer 24

Up , down , strange (charm, top, bottom)

Question 25

Lepton names

Answer 25

Electron, electron neutrino muon , muon neutrino

Question 26

Leptons key facts

Answer 26

No strong interaction only weak

Fundimental particle

Question 27

what always happens to a muon

Answer 27

They always decay into electrons through weak interaction

Question 28

Hadrons key faxts

Answer 28

Only particle which interacts via strong nuclear force
3 grouos baryons/anti and measons
3 quarks or one anti one normal

Question 29

Only stable barion ?

Answer 29

Proton is the only stable barion all others decay into it

Question 30

Pions

Answer 30

Exchange particle for strong nuclear force between nuclear force in the nucleus

Question 31

Kaons

Answer 31

Are strange particles that Have a very short lifespan and can decay into pions

Question 32

When and when isnt strangness conserved

Answer 32

Conserved in a strong and electromagnetic interactions but not conserved in weak weak can differ by (-1,0,+1)