Structure of the atom Flashcards
1
Q
State the features of protons neutrons and electrons
A
Relative charge. Relative mass
Electrons- -1 Negligible
Neutrons. 0 1
Protons. +1. 1
2
Q
What is the atomic number
A
The amount of protons in an atom
3
Q
In an atom is the amount of protons the same as electrons
A
Yes
4
Q
What is the mass number
A
The amount of protons plus neutrons
5
Q
An argon at has a mass number of 40 and an atomic number of 18
A
Protons -18
Neutrons-22
Electrons-18
