Atoms Flashcards
1
Q
What is the charge, mass and placement of a proton?
A
Charge : +1
Mass : 1
Placement : nucleus
2
Q
What is the charge, mass and placement of neutrons?
A
Charge : 0
Mass : 1
Placement : nucleus
3
Q
What is the charge, mass and placement of electrons?
A
Charge : -1
Mass : 0
Placement : shells
4
Q
What is the relative atomic mass?
A
Amount of matter in an atom.
5
Q
What is the atomic (proton) number?
A
Amount of protons (or electrons) in an atom.
6
Q
How do you work out the amount of neutrons in an atom?
A
Atomic mass - atomic number
7
Q
How many electrons can be on the first shell of an atom?
A
2
8
Q
How many electrons can be on the shells after the first one?
A
8
9
Q
What properties do isotopes have?
A
Same number of protons.
Different number of neutrons.
