Atoms Flashcards
1
Q
What does the nucleus contain in an atom?
A
Protons and neutrons
2
Q
A
3
Q
Where is most the mass of an atom concentrated?
A
In the nucleus
4
Q
What is the relative mass of a proton?
A
1
5
Q
What is the relative mass of a neutron?
A
L
6
Q
What is the relative mass of an electron?
A
Less than 0
7
Q
What is the relative charge of a proton?
A
+1
8
Q
What is the relative charge of a neutron?
A
0
9
Q
What is the relative charge of an electron?
A
-1
10
Q
What are the amount of protons always equal to?
A
The amount of electrons
11
Q
What is the charge of an atom?
A
0
12
Q
Why are atoms neutral?
A
Because the negatively charged electrons and the positively charged protons cancel eachother out as there is always an equal amount
