C1.2.1 - Atomic structure Flashcards
1
Q
What is a molecule made from?
A
A molecule is made from two or more atoms joined together by chemical bonds
2
Q
How many subatomic particles are there in an atom?
A
3
3
Q
How many times smaller is the radius of an nucleus than the radius of an atom?
A
100,000 times smaller
4
Q
What is the relative mass of a proton?
A
1
5
Q
What is the charge of a proton?
A
+1
6
Q
What is the relative mass of a neutron?
A
1
7
Q
What is the charge of a neutron?
A
0
8
Q
What is the relative mass of an electron?
A
0.0005
9
Q
What is the charge of an electron?
A
-1
