C1.1 Fundamental Ideas Flashcards
1
Q
What are the sub-atomic particles?
A
Protons, electrons and neutrons.
2
Q
What charge does a proton have?
A
Positive
3
Q
What charge does an Electron have?
A
Negative
4
Q
How do you calculate the amount of neutrons in an atom?
A
Mass number - atomic number.
5
Q
What’s equal to the amount of protons? Why?
A
The amount of electrons to cancel out the positive charge so it is neutral.
6
Q
What does it mean if the atomic structure has a full outer shell?
A
It means it is less reactive, because it doesn’t want to lose or gain any energy.
7
Q
What is a covalent bond?
A
When non-metal atoms react together to gain electrons to fill their outer shell and become stable.
8
Q
What’s an ionic bond?
A
When metals and non-metal atoms rest together. They give or take electrons to have a full outer shell.
