Quiz Questions (25 questions)
Question 1
A neutral calcium atom has an atomic number of 20 and a mass number of 40.How can you use this information to find the number of neutrons and electrons. (2 marks)
Question 2
A neutral calcium atom has an atomic number of 20 and a mass number of 40.How can you use this information to find the number of neutrons and electrons. (2 marks)
Question 3
A neutral calcium atom has an atomic number of 20 and a mass number of 40.How can you use this information to find the number of neutrons and electrons. (2 marks)
Question 4
A student says Beryllium has 4 protons and 5 neutrons.
(a) What is its atomic number? (1 mark)
(b) Give a reason why it is still Beryllium even if the number of neutrons changes. (1 mark)
Question 5
A student writes the symbol for potassium as shown below. (a) What does the top number (39) represent? (1 mark)(b) What does the bottom number (19) represent? (1 mark)
Question 6
A student writes the symbol for potassium as shown below. (a) What does the top number (39) represent? (1 mark)(b) What does the bottom number (19) represent? (1 mark)
Question 7
A student writes the symbol for potassium as shown below. (a) What does the top number (39) represent? (1 mark)(b) What does the bottom number (19) represent? (1 mark)
Question 8
An atom has 15 protons, 16 neutrons, and 15 electrons. Identify the element. (1 mark)
Question 9
Below is a diagram of an atom with: 13 protons in the nucleus, 14 neutrons in the nucleus and 13 electrons in shells around the nucleus.(a) What is the atomic number? (1 mark)(b) What is the mass number? (1 mark)(c) Name the element. (1 mark)
Question 10
Below is a diagram of an atom with: 13 protons in the nucleus, 14 neutrons in the nucleus and 13 electrons in shells around the nucleus.(a) What is the atomic number? (1 mark)(b) What is the mass number? (1 mark)(c) Name the element. (1 mark)
Question 11
Below is a diagram of an atom with: 13 protons in the nucleus, 14 neutrons in the nucleus and 13 electrons in shells around the nucleus.(a) What is the atomic number? (1 mark)(b) What is the mass number? (1 mark)(c) Name the element. (1 mark)
Question 12
Complete the missing values in the table below:
Element
Atomic number
Mass number
Protons
Neutrons
Electrons
Sodium
11
23
11
?
?
Argon
?
40
18
?
18
Phosphorus
?
?
?
16
15
Boron
5
?
?
5
5
Question 13
Complete the missing values in the table below:
Element
Atomic number
Mass number
Protons
Neutrons
Electrons
Sodium
11
23
11
?
?
Argon
?
40
18
?
18
Phosphorus
?
?
?
16
15
Boron
5
?
?
5
5
Question 14
Complete the missing values in the table below:
Element
Atomic number
Mass number
Protons
Neutrons
Electrons
Sodium
11
23
11
?
?
Argon
?
40
18
?
18
Phosphorus
?
?
?
16
15
Boron
5
?
?
5
5
Question 15
Complete the missing values in the table below:
Element
Atomic number
Mass number
Protons
Neutrons
Electrons
Sodium
11
23
11
?
?
Argon
?
40
18
?
18
Phosphorus
?
?
?
16
15
Boron
5
?
?
5
5
Question 16
Complete the missing values in the table below: (4 marks)
Element
Atomic number
Mass number
Protons
Neutrons
Electrons
Sodium
11
23
11
?
?
Argon
?
40
18
?
18
Phosphorus
?
?
?
16
15
Boron
5
?
?
5
5
Question 17
Complete the missing values in the table below: (4 marks)
Element
Atomic number
Mass number
Protons
Neutrons
Electrons
Sodium
11
23
11
?
?
Argon
?
40
18
?
18
Phosphorus
?
?
?
16
15
Boron
5
?
?
5
5
Question 18
Complete the table below using information about chlorine:
Property
Value
Atomic number
17
Mass number
35
Number of neutrons
?
Question 19
Complete the table below using information about chlorine:
Property
Value
Atomic number
17
Mass number
35
Number of neutrons
?
Question 20
Complete the table below using information about chlorine: (1 mark)
Property
Value
Atomic number
17
Mass number
35
Number of neutrons
?
Question 21
Helium is a noble gas used in balloons. It has 2 protons and 2 neutrons.(a) What is its atomic number? (1 mark)(b) What is its mass number? (1 mark)(c) If one electron is removed, what will be the charge of the helium atom? (1 mark)
Question 22
Helium is a noble gas used in balloons. It has 2 protons and 2 neutrons.(a) What is its atomic number? (1 mark)(b) What is its mass number? (1 mark)(c) If one electron is removed, what will be the charge of the helium atom? (1 mark)
Question 23
Magnesium has an atomic number of 12. Calcium has an atomic number of 20. Which element has more electrons in a neutral atom, and by how many? (2 marks)
Question 24
Sulphur is commonly used in making matchsticks. A sulphur atom has an atomic number of 16 and a mass number of 32. How many protons and neutrons does sulphur have? (2 marks)
Question 25
Sulphur is commonly used in making matchsticks. A sulphur atom has an atomic number of 16 and a mass number of 32. How many protons and neutrons does sulphur have? (2 marks)
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