Chemistry Yr 9 EOY Atomic Structure Flashcards
1
Q
In an atom, what surrounds the nucleus?
A
It is surrounded by electrons arranged in shells
2
Q
What do the nuclei of all atoms contain?
A
Protons
3
Q
The nuclei of most atoms also contain…
A
Neutrons
4
Q
Protons and electrons have…
A
Electrical charges that are equal and opposite
5
Q
Protons are…
A
Positive
6
Q
Neutrons are…
A
Neutral
7
Q
Electrons are…
A
Negative
8
Q
The number of protons in an atom of an element is it’s…
A
Atomic number
9
Q
All atoms of a given element have the same…
A
Number of protons
10
Q
Atoms of different elements have different…
A
Numbers of protons
11
Q
An atom contains an equal…
A
Number of protons and electrons
12
Q
Since protons and electrons have equal and opposite charges, this means that atoms…
A
Have no overall electrical charge
