1
Q
What is the mass of a proton?
A
1
2
Q
What is the mass of a neutron?
A
1
3
Q
What is the mass of an electron?
A
Very small
4
Q
What is the charge of a proton?
A
+1
5
Q
What is the charge of a neutron?
A
0
6
Q
What is the charge of an electron?
A
-1
7
Q
What is an elements atomic number?
A
The number of protons in the nucleus
8
Q
What is the number of protons e?
A
The number of electrons
9
Q
What is the number of electrons equal to?
A
The number of protons
10
Q
What is the mass of an atom made up from? (aka the mass number) and why?
A
Protons + neutrons, because electrons weigh very little
Chemistry Unit 2 + 3
flashcards
Decks in class (17)
# Cards
-
Unit 2 - Structures and Bonding12
-
Unit 3 - Analysis (Testing For Positive And Negative Ions)25
-
Random9
-
Unit 2 - Structures and Properties24
-
Unit 2 - Calculations0
-
Unit 2 - Rates of Reaction14
-
Unit 2 - Acids, Bases and Salts15
-
Unit 2 - Electrolysis17
-
Unit 3 - The Periodic Table16
-
Unit 3 - Water25
-
Unit 3 - The Harbor Process17
-
Unit 3 - Alcohols, Carboxylic Acids and Esters16
-
Unit 3 - Energy from Reactions27
-
ATOMS10
-
Unit 3 - Periodic Table: GROUP 1 ALKALI METALS10
-
Unit 3 - Periodic Table: GROUP 7 THE HALOGENS8
-
Unit 3 - Periodic Table: TRANSITION ELEMENTS5
