Atoms Flashcards
1
Q
Relevant mass and charge of protons
A
1 and +1
2
Q
Relevant mass and change of neutrons
A
1 and 0
3
Q
Relevant mass and charge of electrons
A
Very small and -1
4
Q
What is a atomic number
A
Number of protons
5
Q
Mass number
A
Number of protons + number of neutrons
6
Q
Number of neutrons
A
Mass number - atomic number
7
Q
What is he change of a atom
A
They have no charge they are neutral
8
Q
How do you work out the number of electrons
A
The atomic number because they have the same amount of electrons as protons
9
Q
What is a overall change
A
In a ion protons and electrons are not the same so they have a overall change
10
Q
Positive ion number of electrons equation
A
Atomic number- charge
11
Q
Negative ions equation for number of electrons
A
Atomic number+ charge
