10.1 NUMBER & THE PERIODIC TABLE Flashcards
(12 cards)
1
Q
What are the sub-atomic particles?
A
- Neutrons
- Protons
- Electrons
2
Q
What makes up the nucleus?
A
Protons and neutrons
3
Q
What whizzes around the outside of the atom?
A
Electrons
4
Q
Do all elements have the same amount of protons?
A
No
5
Q
What is the relative mass of a proton?
A
1
6
Q
What is the relative mass of a neutron?
A
1
7
Q
What is the relative mass of an electron?
A
1/1840
8
Q
What is the charge of a proton?
A
+1
9
Q
What is the charge of a neutron?
A
0
10
Q
What is the charge of an electron?
A
-1
11
Q
Why are atoms neutral?
A
Because the number of protons are equal to the number of electrons
12
Q
How is the classification of elements in the periodic table done?
A
By arranging the elements in ascending order of their proton numbers
