grade 9 atomic theory

Front

Structures 1, 2 and 3 represent which subatomic particles of an atom?

Back

proton, neutron, electron respectively

Front

Which subatomic particle(s) are located in the nucleus of an atom? Options: electron and proton, electron and neutron, proton and neutron, proton only

Back

proton and neutron

Front

Which option in the table correctly describes the charges of subatomic particles? Options: A, B, C, D

Back

D

Front

If an atom has 35 protons in the nucleus, how many electrons will it have?

Back

35

Front

What is the atomic number of the atom shown in the diagram? Options: 5, 6, 11, 16

Back

5

Front

What is the atomic mass/mass number of the atom shown in the diagram? Options: 5, 6, 11, 16

Back

11

Front

Lithium has an atomic number of 3 and a mass number of 7. How many electrons are there in a lithium atom?

Back

3

Front

Lithium has an atomic number of 3 and a mass number of 7. How many neutrons are there in a lithium atom?

Back

4

Front

How many protons are in the nucleus of an atom with an atomic number of 15 and an atomic mass of 31?

Back

15

Front

Fluorine has 9 protons, 10 neutrons and 9 electrons. What is the atomic mass/mass number of a fluorine atom?

Back

19