Atomic Structure Flashcards
0
Q
Name the parts of an atom
A
Proton, neutron, electron, nucleus
1
Q
Define an atom
A
The smallest particle of an element which still retains the properties of the element.
2
Q
Is a proton positive or negative?
A
Positive
3
Q
Is a neutron positive or negative?
A
Neutral
4
Q
Is an electron positive or negative?
A
Negative
5
Q
Protons and neutrons weigh..
A
1 AMU
6
Q
Electrons weigh..
A
1/1840 AMU
7
Q
Define isotopes
A
Atoms of the same element with different numbers of neutrons
8
Q
Atomic number =
A
The number of protons in an atom
9
Q
Mass number =
A
The number of protons + neutrons
10
Q
The number of neutrons =
A
the mass number - protons
11
Q
We use the … Number in atomic diagrams
A
The atomic number
12
Q
The number of atoms on each ring of the diagram is..
A
2,8,8
