1. Revision Quiz Atomic Theory 1
1. Draw a simple picture of an atom show the three main particles
2. What charge does an atom have?
3. What charge does a neutron have?
4. What charge does a proton have?
5. What charge does a electron have?
Protons and neutrons
electrons
No charge
No charge
positive
negative

2. Revision Quiz Atomic Theory 2
1. What particle has “ no mass”
2. What is the mass number?
3. What is the atomic number
4. How is the number of neutrons calculated?
5. Why are atoms neutral?
electron
Number of protons + number of neutrons
Number of protons (and number of electrons in a neutral atom)
Mass number – Atomic number
Same number of positive and negative particles. They cancel each other out.

3. Revision Quiz Atomic Theory 3
1. Complete the following table
Isotope
Atomic Number
Mass
Number
No. of Protons
No. of Electrons
No. of Neutrons 92 13 27 Al 13 27 13 13 14 13 28 Al 13 28 13 13 15 12 25 Mg 12 25 12 12 13 6 13 C 6 13 6 6 7
235 U
235 92 92
143 17 35
Cl - 17 35 17 18 18

4. Revision Quiz Atomic Theory 4
1. Complete the following table
Isotope
Atomic Number
Mass
Number
No. of Protons
No. of Electrons
No. of Neutrons 10 8 16
O 2- 8 16 8 10 8 1
H + 1 1 1 4 9
Be2+ 4 9 4 2 5 6 14 C 6 14 6 6 8 20 Ne 20 10 10 10 9 17
F - 9 17 9 10 8

5. Revision Quiz Atomic Theory 5
1. What do we call atoms with the same atomic number but different mass number?
2. These particles have the same number of which particles?
3. Why is the relative atomic mass rarely a whole number?
4. What do we call columns in the Periodic Table?
5. What do we call rows in the Periodic Table?
isotopes
Number of protons (+ number of electrons in a neutral atom)
An average that takes into account the percentage abundance of each isotope
groups
periods

6. Revision Quiz Atomic Theory 6
1. What group is also called the alkali metals?
2. What group is also called the noble gases?
3. What group is also called the halogens?
4. Elements above what number are man made?
5. Name two transition metals? 1 7 92
Gold, silver, copper etc.

7. Revision Quiz Atomic Theory 7
1. What is the maximum number of electrons in each shell?
2 electrons
8 electrons
8 electrons

8. Revision Quiz Atomic Theory 8
1. What is the electron arrangement of carbon?
2. What is the electron arrangement of neon?
3. What is the electron arrangement of oxygen?
4. What is the electron arrangement of calcium?
5. What is the electron arrangement of sodium?
2,4
2,8
2,6
2,8,8,2
2,8,1

9. Revision Quiz Atomic Theory 9
Identify the following elements. Write down their symbol, atomic number & mass number in the usual way
10p + 10n 6p + 6n 9p + 9n 11p + 12n Ne 10 20 C 6 12 F 9 18 Na 11 23

10. Revision Quiz Atomic Theory 10

11. Revision Quiz Atomic Theory 11