C3.1 States of Matter Part 2 Flashcards
1
Q
Where are protons and neutrons
A
In the Nucleus.
2
Q
What is the relative mass of each sub - atomic
particle?
A
Proton:1, neutron:1, electron:0 (very small).
3
Q
What is the relative charge of each sub - atomic in an atom particle?
A
Proton: +1, neutron: 0, electron: -1.
4
Q
How can you find out the number of protons in an atom?
A
The atomic number on the parodic table.
5
Q
How can you calculate the number of neutrons in an atom?
A
Mass number - atomic number.
6
Q
Why do atoms have no overall charge?
A
They have equal numbers of positive protons and negative electrons.
7
Q
How many electrons would you place in the first second, and third shells?
A
Up to 2 in the first shell and up to 8 in the second and third shells.
