atomic physics
0.0(0)
Studied by 6 people
Call Kai
Learn
Practice Test
Spaced Repetition
Match
Flashcards
Knowt PlayCard Sorting
1/25
Earn XP
Description and Tags
Last updated 10:04 PM on 5/9/23
Name | Mastery | Learn | Test | Matching | Spaced | Call with Kai |
|---|
No analytics yet
Send a link to your students to track their progress
26 Terms
1
New cards
what is an alpha particle
* 2 neutrons
* 2 protons
* same as helium nucleus
* 2 protons
* same as helium nucleus
2
New cards
what is a beta particle
* high speed electron ejected from the nucleus as a neutron turns into a proton
3
New cards
what is a gamma ray
* electromagnetic radiation from the nucleus
4
New cards
alpha charge
\+2
5
New cards
beta charge
\-1
6
New cards
gamma charge
0
7
New cards
alpha ionising ability
high
8
New cards
beta ionising ability
medium
9
New cards
gamma ionising ability
none
10
New cards
alpha range
cm
11
New cards
beta range
m
12
New cards
gamma range
infinite
13
New cards
alpha penetrating ability
low
14
New cards
beta penetrating ability
medium
15
New cards
gamma penetrating ability
high
16
New cards
what is radiation measured in
sieverts
17
New cards
sieverts symbols
Sv
18
New cards
alpha symbol
4\.2 α or 4.2 He
19
New cards
beta symbol
0\.-1 β or 0.-1 e
20
New cards
gamma symbol
γ
21
New cards
what is activity
the rate at which a source of unstable nuclei decay
22
New cards
what is activity measured in
becquerel
23
New cards
symbol for becquerel
Bq
24
New cards
what is half life
the time it takes for the number of particle/nuclei/count rate to halve
25
New cards
radioactive contamination
unwanted presence of materials containing radioactive atoms on other materials
26
New cards
irradiation
the process of exposing an object to nuclear radiation
Note 
Flashcards (40)