Lesson 1 - the atom and isotopes Flashcards
1
Q
What are the three sub-atomic particles inside an atom?
A
Electron, neutron and proton
2
Q
What sub-atomic particles make out the nucleus of the atom?
A
Neutron and proton
3
Q
Where is the electrons located?
A
In shells surrounding the nucleus of the atom
4
Q
where is the nucleus?
A
In the middle of the atom
5
Q
What is a nucleon?
A
It is a particle found in the nucleus of the atom
6
Q
what is the mass and charge of a proton?
A
The mass is 1 and the charge is +1
7
Q
what is the mass and charge of a neutron?
A
the mass is 1 and the charge is 0
8
Q
what is the mass and charge of an electron?
A
the mass is 0 or 1/1836 and the charge is -1.
9
Q
How can scientist differentiate 2 different atoms?
A
The number of protons
