The nucleus — Paper 1 · IGCSE Sciences - Co-ordinated (Double) 0654

38 Which process is used in a nuclear power station and which nuclear change happens in this process? process used nuclear change A fission heavy nuclei split B fission light nuclei join together C fusion heavy nuclei split D fusion light nuclei join together

1 marks

Answer: A

This question in 0654/11 May/June 2011

38 Which process is used in a nuclear power station and which nuclear change happens in this process? process used nuclear change A fission heavy nuclei split B fission light nuclei join together C fusion heavy nuclei split D fusion light nuclei join together

1 marks

Answer: A

This question in 0654/12 May/June 2011

40 What are carbon-12 and carbon-14? A atoms of different elements with different nuclear masses B atoms of different elements with the same nuclear mass C atoms of the same element with different nuclear masses D atoms of the same element with the same nuclear mass

1 marks

Answer: C

This question in 0654/11 May/June 2012

40 The diagrams represent the nuclei of four different atoms V, W, X and Y. V W X Y key n p p proton n n p p n n p p p p n p p p n n neutron n n p Which two diagrams represent isotopes of the same element? A V and W B W and X C X and Y D Y and V

1 marks

Answer: D

This question in 0654/13 May/June 2012

40 A proton has charge q and mass m. A neutron has no charge and mass m. Which row shows the charge and mass of an α-particle? charge mass A 2q 2m B 2q 4m C 4q 2m D 4q 4m

1 marks

Answer: B

This question in 0654/11 Oct/Nov 2013

40 A proton has charge q and mass m. A neutron has no charge and mass m. Which row shows the charge and mass of an α-particle? charge mass A 2q 2m B 2q 4m C 4q 2m D 4q 4m

1 marks

Answer: B

This question in 0654/12 Oct/Nov 2013

40 An atom of beryllium is represented by Be. 9 4 How many neutrons are in the nucleus of this type of beryllium atom? A 4 B 5 C 9 D 13

1 marks

Answer: B

This question in 0654/13 Oct/Nov 2013

40 The table gives the nucleon number and the proton number of three atoms X, Y and Z. nucleon number proton number X 35 17 Y 37 17 Z 37 18 Which of these atoms are isotopes of the same element? A X and Y only B X and Z only C Y and Z only D X, Y and Z

1 marks

Answer: A

This question in 0654/11 May/June 2014

40 The table compares an atom of carbon-13 and an atom of nitrogen-14. carbon-13 nitrogen-14 nucleon number A 6 7 proton number Z 13 14 A neutral atom of carbon-13 and a neutral atom of nitrogen-14 have the same number of A electrons. B ions. C neutrons. D protons.

1 marks

Answer: C

This question in 0654/11 Oct/Nov 2015

40 The table compares an atom of carbon-13 and an atom of nitrogen-14. carbon-13 nitrogen-14 nucleon number A 6 7 proton number Z 13 14 A neutral atom of carbon-13 and a neutral atom of nitrogen-14 have the same number of A electrons. B ions. C neutrons. D protons.

1 marks

Answer: C

This question in 0654/12 Oct/Nov 2015

40 The table compares an atom of carbon-13 and an atom of nitrogen-14. carbon-13 nitrogen-14 nucleon number A 6 7 proton number Z 13 14 A neutral atom of carbon-13 and a neutral atom of nitrogen-14 have the same number of A electrons. B ions. C neutrons. D protons.

1 marks

Answer: C

This question in 0654/13 Oct/Nov 2015

40 The diagrams represent the nuclei of four different atoms V, W, X and Y. V W X Y key p n p proton p p n n n n p p p p n p p p n n neutron p n n Which two diagrams represent isotopes of the same element? A V and W B W and X C X and Y D Y and V

1 marks

Answer: C

This question in 0654/11 Oct/Nov 2016

40 The diagrams represent the nuclei of four different atoms V, W, X and Y. V W X Y key p n p proton p p n n n n p p p p n p p p n n neutron p n n Which two diagrams represent isotopes of the same element? A V and W B W and X C X and Y D Y and V

1 marks

Answer: C

This question in 0654/12 Oct/Nov 2016

40 The diagrams represent pairs of nuclei of some atoms. Which pair shows nuclei of different isotopes of the same element? A B key neutron proton C D

1 marks

Answer: B

This question in 0654/13 Oct/Nov 2017

40 The atomic number of an isotope is 6 and the mass number is 14. How many neutrons and how many protons are in the nucleus of an atom of this isotope? neutrons protons A 8 6 B 8 8 C 14 6 D 14 8

1 marks

Answer: A

This question in 0654/13 Oct/Nov 2018

40 There are three different isotopes of hydrogen. 1 H H 2 H 3 1 1 1 Which statement about the nuclei of these three isotopes is correct? A They have different numbers of electrons. B They have the same number of nucleons. C They have the same number of neutrons. D They have the same number of protons.

1 marks

Answer: D

This question in 0654/11 May/June 2019

39 An atom of an isotope of strontium (Sr) has a proton number of 38 and contains 52 neutrons. What is the nuclide notation for this isotope? A 52 Sr B 90 Sr C 38 Sr D 90 Sr 38 38 52 52

1 marks

Answer: B

This question in 0654/12 May/June 2019

39 An atom of an isotope of strontium (Sr) has a proton number of 38 and contains 52 neutrons. What is the nuclide notation for this isotope? A 52 Sr B 90 Sr C 38 Sr D 90 Sr 38 38 52 52

1 marks

Answer: B

This question in 0654/13 May/June 2019

39 What is the proton number (atomic number) of the nuclide 14 C ? 6 A 6 B 8 C 14 D 20

1 marks

Answer: A

This question in 0654/13 Oct/Nov 2019

40 The diagrams represent the nuclei of four different atoms V, W, X and Y. V W X Y key n p n p proton p p n n n n p p p p n p p p n n neutron p n n n Which two diagrams represent isotopes of the same element? A V and Y B W and X C X and Y D Y and W

1 marks

Answer: C

This question in 0654/11 May/June 2020

39 The table compares an atom of carbon-13 and an atom of nitrogen-14. carbon-13 nitrogen-14 nucleon number A 13 14 proton number Z 6 7 What do the neutral atom of carbon-13 and the neutral atom of nitrogen-14 have the same number of? A electrons B ions C neutrons D protons

1 marks

Answer: C

This question in 0654/12 Feb/March 2021

40 The table gives information about four nuclides P, Q, R and S. number of number of nuclide protons neutrons P 81 123 Q 82 122 R 82 123 S 83 121 Which nuclides are isotopes of the same element? A P and Q B P and R C Q and R D Q and S

1 marks

Answer: C

This question in 0654/12 Oct/Nov 2021

39 An atom of beryllium is represented by Be. 9 4 How many neutrons are in the nucleus of this type of beryllium atom? A 4 B 5 C 9 D 13

1 marks

Answer: B

This question in 0654/11 May/June 2022

40 An atom of beryllium is represented by Be. 9 4 How many neutrons are in the nucleus of this type of beryllium atom? A 4 B 5 C 9 D 13

1 marks

Answer: B

This question in 0654/12 May/June 2022

40 An atom of beryllium is represented by Be. 9 4 How many neutrons are in the nucleus of this type of beryllium atom? A 4 B 5 C 9 D 13

1 marks

Answer: B

This question in 0654/13 May/June 2022

40 The diagrams represent pairs of nuclei of some atoms. Which pair shows nuclei of different isotopes of the same element? A B key neutron proton C D

1 marks

Answer: B

This question in 0654/11 Oct/Nov 2022

40 The diagrams represent pairs of nuclei of some atoms. Which pair shows nuclei of different isotopes of the same element? A B key neutron proton C D

1 marks

Answer: B

This question in 0654/12 Oct/Nov 2022

40 The diagrams represent pairs of nuclei of some atoms. Which pair shows nuclei of different isotopes of the same element? A B key neutron proton C D

1 marks

Answer: B

This question in 0654/13 Oct/Nov 2022

39 The nucleus of an isotope of gold contains 79 protons and 118 neutrons. The symbol for gold is Au. What is the nuclide symbol for this isotope? A 79 Au B 79 Au C 118 Au D 197 Au 118 197 79 79

1 marks

Answer: D

This question in 0654/12 Feb/March 2023

40 A nuclide of hydrogen is represented by H. 3 1 Which row shows the number of protons and the number of neutrons in this nuclide? protons neutrons A 1 2 B 1 3 C 2 1 D 3 1

1 marks

Answer: A

This question in 0654/11 Oct/Nov 2023

40 A radioactive nucleus emits an alpha ()-particle. What happens to the proton number and what happens to the nucleon number of the nucleus? proton number nucleon number A decreases by 2 decreases by 4 B decreases by 2 does not change C increases by 1 decreases by 1 D increases by 1 does not change

1 marks

Answer: A

This question in 0654/12 Feb/March 2024

39 An atom of an isotope of strontium (Sr) has a proton number of 38 and contains 52 neutrons. What is the nuclide notation for this isotope? A 52 Sr B 90 Sr C 38 Sr D 90 Sr 38 38 52 52

1 marks

Answer: B

This question in 0654/12 May/June 2024

39 An atom of an isotope of strontium (Sr) has a proton number of 38 and contains 52 neutrons. What is the nuclide notation for this isotope? A 52 Sr B 90 Sr C 38 Sr D 90 Sr 38 38 52 52

1 marks

Answer: B

This question in 0654/13 May/June 2024

39 An element has two isotopes. Which statement about the nuclei of atoms of these isotopes is correct? A They have equal numbers of neutrons but different numbers of electrons. B They have equal numbers of neutrons but different numbers of protons. C They have equal numbers of protons but different numbers of electrons. D They have equal numbers of protons but different numbers of neutrons.

1 marks

Answer: D

This question in 0654/11 Oct/Nov 2024

39 A nucleus has atomic number Z and mass number A. What is equal to the value of A – Z? A the number of electrons orbiting the nucleus B the number of neutrons in the nucleus C the number of nucleons in the nucleus D the number of protons in the nucleus

1 marks

Answer: B

This question in 0654/12 Oct/Nov 2024

39 A nucleus has atomic number Z and mass number A. What is equal to the value of A – Z? A the number of electrons orbiting the nucleus B the number of neutrons in the nucleus C the number of nucleons in the nucleus D the number of protons in the nucleus

1 marks

Answer: B

This question in 0654/13 Oct/Nov 2024