Atomic Structure Flashcards
1
Q
Structure of an atom
A
Made up of protons, neutrons & electrons
2
Q
Subatomic particles
A
Particles smaller & within the atom
3
Q
Location of electrons
A
Shell
4
Q
Location of protons
A
Nucleus
5
Q
Location of neutrons
A
Nucleus
6
Q
Relative charge of electrons
A
-1
7
Q
Relative charge of protons
A
+1
8
Q
Relative charge of neutrons
A
0
9
Q
Relative mass of electrons
A
1/1836
10
Q
Relative mass of protons
A
1
11
Q
Relative mass of neutrons
A
1
12
Q
Highest concentration of mass in an atom
A
Nucleus - electrons have a smaller mass compared to protons & neutrons
13
Q
Mass number
A
Number of protons + neutrons
(the number on top of the symbol)
14
Q
Atomic number
A
Number of protons (=number of electrons)
(the number on the bottom of the symbol)
15
Q
Calculate the number of neutrons (method)
A
Mass number - Atomic number = Neutrons
