C1 Part 2 Flashcards
1
Q
What is the relative mass of each subatomic particle
A
Proton=1
Neutron=1
Electron 0.0005/0
2
Q
what is the relative mass of an atom
A
number of protons + number of neutrons
3
Q
what is the radius of an atom
how many times smaller is the nucleus from the atom
A
0.1 nanometres/1x10-10 m
10000 times smaller
4
Q
which is the atomic number and mass number in 12
6 C
A
12=mass number
6=atomic number
5
Q
the closer the shell is to the nucleus, the lower its?
A
energy level is
