Atomic Structure Flashcards
1
Q
Where are the protons and neutrons in an atom ?
A
Nucleus
2
Q
The electron is ?
A
In the energy levels
3
Q
What charge does the proton have ?
A
Proton = POSITIVE
4
Q
What charge does the neutron have ?
A
Neutron = NEGATIVE
5
Q
What charge does the electron have ?
A
Electron = NO CHARGE
6
Q
23
Na What does the 23 mean ?
11
A
23 = The Mass number - tells us how many neutrons we have e.g) 23 - 11 = 12
7
Q
23
Na What does the 11 mean ?
11
A
11 = The Atomic number - tels us how many protons we have.
8
Q
What is an Isotope ?
A
Isotopes are atoms with the same atomic number but different mass number e.g) 12 14
C C
6 6
