Nuclear equations Flashcards
1
Q
How does a nucleus change into a new element
A
By emitting alpha or beta particles
2
Q
What happens to no. of protons and neutrons in alpha decay and how does this effect atomic/mass number
A
Both decrease by 2 so:
Atomic number: -2
Mass number: -4
3
Q
Give the alpha decay of Rn:
Mass no.: 219
Atomic no.: 86
A
Po (MN:215,AN:84) + He (MN:4,AN:2)
4
Q
How does beta decay affect the atomic number
A
+1 (gives a proton)
5
Q
How does beta decay affect the mass number
A
No effect
6
Q
Give the beta decay of C
Mass no.: 14
Atomic no.: 6
A
N (MN:14,AN:7) + e (MN:0,AN:-1)
7
Q
Why doesn’t gamma change the structure of the nucleus
A
Because it is just pure energy
