The mass number of elements practice exercise 2

Course: Grade 9 Integrated science - Mixtures, Elements and Compounds - Structure of the atom

Quiz Questions (45 questions)

Question 1

A certain atom has an atomic number of 20 and a mass number of 40. How many neutrons are in this atom?

Question 2

A certain atom has an atomic number of 20 and a mass number of 40. How many neutrons are in this atom?

Question 3

A certain atom has an atomic number of 20 and a mass number of 40. How many neutrons are in this atom? (1 mark)

Question 4

A certain atom has an atomic number of 20 and a mass number of 40. How many neutrons are in this atom? (1 mark)

Question 5

An atom has 17 protons, 17 electrons, and 18 neutrons. What is its mass number?

Question 6

An atom has 17 protons, 17 electrons, and 18 neutrons. What is its mass number? (1mark)

Question 7

An atom has 17 protons, 17 electrons, and 18 neutrons. What is its mass number? (1mark)

Question 8

An atom has 17 protons, 17 electrons, and 18 neutrons. What is its mass number? (1 mark)

Question 9

An atom has 6 protons and 6 neutrons. What is its mass number?

Question 10

An atom has 6 protons and 6 neutrons. What is its mass number? (1 mark)

Question 11

An atom has 6 protons and 6 neutrons. What is its mass number? (1 mark)

Question 12

An atom has 6 protons and 6 neutrons. What is its mass number? (1 mark)

Question 13

An atom has a mass number of 39 and 20 neutrons. How many protons does it have?

Question 14

An atom has a mass number of 39 and 20 neutrons. How many protons does it have? (1 mark)

Question 15

An atom has a mass number of 39 and 20 neutrons. How many protons does it have? (1 mark)

Question 16

An atom has a mass number of 39 and 20 neutrons. How many protons does it have? (1 mark)

Question 17

Calcium has 20 protons and 20 neutrons. What is its mass number?

Question 18

Calcium has 20 protons and 20 neutrons. What is its mass number? (1 mark)

Question 19

Calcium has 20 protons and 20 neutrons. What is its mass number? (1 mark)

Question 20

Calcium has 20 protons and 20 neutrons. What is its mass number? (1 mark)

Question 21

In the diagram below, the sodium atom has 11 protons and 12 neutrons. What is its mass number?

Question 22

In the diagram below, the sodium atom has 11 protons and 12 neutrons. What is its mass number? (1 mark)

Question 23

In the diagram below, the sodium atom has 11 protons and 12 neutrons. What is its mass number? (1 mark)

Question 24

In the diagram below, the sodium atom has 11 protons and 12 neutrons. What is its mass number? (1 mark)

Question 25

In the diagram below, the sodium atom has 11 protons and 12 neutrons. What is its mass number? (1 mark)

Question 26

In the diagram below, the sodium atom has 11 protons and 12 neutrons. What is its mass number? (1 mark)

Question 27

Refer to the diagram of a chlorine atom below. It shows 17 protons and 18 neutrons. What is its mass number?

Question 28

Refer to the diagram of a chlorine atom below. It shows 17 protons and 18 neutrons. What is its mass number? (1 mark)

Question 29

Refer to the diagram of a chlorine atom below. It shows 17 protons and 18 neutrons. What is its mass number? (1 mark)

Question 30

Refer to the diagram of a chlorine atom below. It shows 17 protons and 18 neutrons. What is its mass number? (1 mark)

Question 31

Refer to the diagram of a chlorine atom below. It shows 17 protons and 18 neutrons. What is its mass number? (1 mark)

Question 32

Refer to the image of oxygen below. If the element has 8 protons and 8 neutrons, what is the atomic number?

Question 33

Refer to the image of oxygen below. If the element has 8 protons and 8 neutrons, what is the mass number of oxygen? (1mark)

Question 34

Refer to the image of oxygen below. If the element has 8 protons and 8 neutrons, what is the mass number of oxygen? (1mark)

Question 35

Refer to the image of oxygen below. If the element has 8 protons and 8 neutrons, what is the mass number of oxygen? (1mark)

Question 36

Refer to the image of oxygen below. If the element has 8 protons and 8 neutrons, what is the mass number of oxygen? (1mark)

Question 37

Refer to the image of oxygen below. If the element has 8 protons and 8 neutrons, what is the mass number of oxygen? (1mark)

Question 38

Based on the atomic structure diagram of magnesium below, what is the mass number?

Question 39

Based on the atomic structure diagram of magnesium below, what is the mass number? (1 mark)

Question 40

Based on the atomic structure diagram of magnesium below, what is the mass number? (1 mark)

Question 41

Based on the atomic structure diagram of magnesium below, what is the mass number? (1 mark)

Question 42

Fluorine has an atomic number of 9 and a mass number of 19. How many neutrons does it have?

Question 43

Fluorine has an atomic number of 9 and a mass number of 19. How many neutrons does it have? (1 mark)

Question 44

Fluorine has an atomic number of 9 and a mass number of 19. How many neutrons does it have? (1 mark)

Question 45

Fluorine has an atomic number of 9 and a mass number of 19. How many neutrons does it have? (1 mark)

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