Electron Arrangement in atoms practice exercise 1

Question 1

Study the diagram below of Lithium. It shows an atom with 2 electrons in the first shell and 1 in the second. What is the electron arrangement of this atom? (1 mark)

Question 2

Study the diagram below of Lithium. It shows an atom with 2 electrons in the first shell and 1 in the second. What is the electron arrangement of this atom? (1 mark)

Question 3

Study the diagram below of Lithium. It shows an atom with 2 electrons in the first shell and 1 in the second. What is the electron arrangement of this atom? (1 mark)

Question 4

Refer to the diagram below showing the electron distribution in Magnesium atom. How many electrons are in each shell of this atom? (1 mark)

Question 5

Refer to the diagram below showing the electron distribution in Magnesium atom. How many electrons are in each shell of this atom? (1 mark)

Question 6

Refer to the diagram below showing the electron distribution in Magnesium atom. How many electrons are in each shell of this atom? (1 mark)

Question 7

An atom has 16 protons, 16 electrons, and 16 neutrons.(a) Identify the element. (1 mark)(b) Show its electron arrangement using crosses. (1 mark)(c) Determine the mass number of the atom. (1 mark)

Question 8

An atom has 16 protons, 16 electrons, and 16 neutrons.(a) Identify the element. (1 mark)(b) Show its electron arrangement using crosses. (1 mark)(c) Determine the mass number of the atom. (1 mark)

Question 9

An atom has 16 protons, 16 electrons, and 16 neutrons.(a) Identify the element. (1 mark)(b) Show its electron arrangement using crosses. (1 mark)(c) Determine the mass number of the atom. (1 mark)

Question 10

An atom has 16 protons, 16 electrons, and 16 neutrons.(a) Identify the element. (1 mark)(b) Show its electron arrangement using crosses. (1 mark)(c) Determine the mass number of the atom. (1 mark)

Question 11

An atom of Beryllium (Be) has 4 electrons. What is its electron arrangement? (1 mark)

Question 12

An atom of Beryllium (Be) has 4 electrons. What is its electron arrangement? (1 mark)

Question 13

An atom of Beryllium (Be) has 4 electrons. What is its electron arrangement? (1 mark)

Question 14

An atom of Chlorine (Cl) has 17 protons and 18 neutrons.(a) What is the electron arrangement of Chlorine? (1 mark)(b) Draw a dot diagram showing its electron arrangement. (1 mark)(c) Calculate the mass number of Chlorine. (1 mark)

Question 15

An atom of Chlorine (Cl) has 17 protons and 18 neutrons.(a) What is the electron arrangement of Chlorine? (1 mark)(b) Draw a dot diagram showing its electron arrangement. (1 mark)(c) Calculate the mass number of Chlorine. (1 mark)

Question 16

An atom of Chlorine (Cl) has 17 protons and 18 neutrons.(a) What is the electron arrangement of Chlorine? (1 mark)(b) Draw a dot diagram showing its electron arrangement. (1 mark)(c) Calculate the mass number of Chlorine. (1 mark)

Question 17

An atom of Chlorine (Cl) has 17 protons and 18 neutrons.(a) What is the electron arrangement of Chlorine? (1 mark)(b) Draw a dot diagram showing its electron arrangement. (1 mark)(c) Calculate the mass number of Chlorine. (1 mark)

Question 18

Match each element in Column A with its correct electron arrangement and mass number from Column B. Column A – Element Column B – Electron Arrangement & Mass Number 1. Magnesium (Mg) A. 2.8.7 – Mass number: 35 2. Sulphur (S) B. 2.8.8 – Mass number: 40 3. Calcium (Ca) C. 2.8.6 – Mass number: 32 4. Chlorine (Cl) D. 2.8.2 – Mass number: 24

Question 19

Match each element in Column A with its correct electron arrangement and mass number from Column B. Column A – Element Column B – Electron Arrangement & Mass Number 1. Magnesium (Mg) A. 2.8.7 – Mass number: 35 2. Sulphur (S) B. 2.8.8 – Mass number: 40 3. Calcium (Ca) C. 2.8.6 – Mass number: 32 4. Chlorine (Cl) D. 2.8.2 – Mass number: 24

Question 20

Match each element in Column A with its correct electron arrangement and mass number from Column B. Column A – Element Column B – Electron Arrangement & Mass Number 1. Magnesium (Mg) A. 2.8.7 – Mass number: 35 2. Sulphur (S) B. 2.8.8 – Mass number: 40 3. Calcium (Ca) C. 2.8.6 – Mass number: 32 4. Chlorine (Cl) D. 2.8.2 – Mass number: 24

Question 21

Match each element in Column A with its correct electron arrangement and mass number from Column B. (4 mark Column A – Element Column B – Electron Arrangement & Mass Number Magnesium 2.8.7 – Mass number: 35 Sulphur 2.8.8 – Mass number: 40 Chlorine 2.8.2 – Mass number: 24

Question 22

Match each element in Column A with its correct electron arrangement and mass number from Column B. (4 mark Column A – Element Column B – Electron Arrangement & Mass Number Calcium 2.8.6 – Mass number: 32 Magnesium 2.8.7 – Mass number: 35 Sulphur 2.8.8 – Mass number: 40 Chlorine 2.8.2 – Mass number: 24

Question 23

Match each element in Column A with its correct electron arrangement and mass number from Column B. (4 mark Column A – Element Column B – Electron Arrangement & Mass Number Calcium 2.8.6 – Mass number: 32 Magnesium 2.8.7 – Mass number: 35 Sulphur 2.8.8 – Mass number: 40 Chlorine 2.8.2 – Mass number: 24

Question 24

Match each element in Column A with its correct electron arrangement and mass number from Column B. (4 mark Column A – Element Column B – Electron Arrangement & Mass Number Calcium 2.8.6 – Mass number: 32 Magnesium 2.8.7 – Mass number: 35 Sulphur 2.8.8 – Mass number: 40 Chlorine 2.8.2 – Mass number: 24

Question 25

What is meant by electron arrangement in an atom? (1 mark)

Question 26

What is meant by electron arrangement in an atom? (1 mark)

Question 27

What is meant by electron arrangement in an atom? (1 mark)

Question 28

What is the electron arrangement of a Sodium (Na) atom which has 11 electrons? (2 marks)

Question 29

What is the electron arrangement of a Sodium (Na) atom which has 11 electrons? (2 marks)

Question 30

What is the electron arrangement of a Sodium (Na) atom which has 11 electrons? (2 marks)

Question 31

Calcium (Ca) has an atomic number of 20 and a mass number of 40.(a) How many protons, neutrons, and electrons does Calcium have? (1 mark)(b) Write its electron arrangement. (1 mark)(c) Explain briefly how the number of neutrons is determined. (1 mark)

Question 32

Calcium (Ca) has an atomic number of 20 and a mass number of 40.(a) How many protons, neutrons, and electrons does Calcium have? (1 mark)(b) Write its electron arrangement. (1 mark)(c) Explain briefly how the number of neutrons is determined. (1 mark)

Question 33

Calcium (Ca) has an atomic number of 20 and a mass number of 40.(a) How many protons, neutrons, and electrons does Calcium have? (1 mark)(b) Write its electron arrangement. (1 mark)(c) Explain briefly how the number of neutrons is determined. (1 mark)

Question 34

Argon is a noble gas with an atomic number of 18 and a mass number of 40.(a) What is the electron arrangement of Argon? (1 mark)(b) How many protons, neutrons, and electrons does it have? (1 mark)(c) Draw a cross diagram for its electron configuration. (1 mark)

Question 35

Argon is a noble gas with an atomic number of 18 and a mass number of 40.(a) What is the electron arrangement of Argon? (1 mark)(b) How many protons, neutrons, and electrons does it have? (1 mark)(c) Draw a cross diagram for its electron configuration. (1 mark)

Question 36

Argon is a noble gas with an atomic number of 18 and a mass number of 40.(a) What is the electron arrangement of Argon? (1 mark)(b) How many protons, neutrons, and electrons does it have? (1 mark)(c) Draw a cross diagram for its electron configuration. (1 mark)

Quiz Questions (36 questions)