Physics 0625 · IGCSE
The nuclear model of the atom
100 practice questions on The nuclear model of the atom, with worked solutions and instant marking.
A nucleus of element $X$ is shown as $^{56}_{26}X$. Which one is an isotope of element $X$?
Feb/March 2016
The charge of a proton is $e$. What charge does an electron have, and what charge does a neutron have?
Feb/March 2016
Scattering of $\alpha$-particles by a thin metal foil provides evidence for the nuclear model of an atom. Why are $\alpha$-particles used instead of neutrons?
Feb/March 2016
The nuclide symbol for one isotope of silver is $^{109}_{47}\text{Ag}$. What is the number of nucleons in the nucleus of this isotope?
Feb/March 2017
The nuclide notation for one isotope of silver is $^ {109}_{47}\text{Ag}$. What is the number of nucleons in the nucleus of this isotope?
Feb/March 2017
This question concerns the atomic structure of an atom.
Feb/March 2017
The symbol for an isotope of sodium is $^{23}_{11}\text{Na}$. Which row shows the composition of a neutral atom of this sodium isotope?
Feb/March 2018
Which diagram shows a nucleus of $^{3}_{1}\text{H}$?
Feb/March 2018
An isotope of sodium is represented by $^{23}_{11}\text{Na}$. Which row shows the make-up of a neutral atom of this sodium isotope?
Feb/March 2018
Which of the following statements about atomic structure is correct?
Feb/March 2019
What is meant by isotopes of an element?
Feb/March 2019
What does the term isotopes of an element mean?
Feb/March 2019
A radioactive carbon nuclide is represented by the symbol $^{14}_{6}\text{C}$. How many neutrons does its nucleus contain?
Feb/March 2020
In Rutherford’s experiment using thin gold foil, some $\alpha$-particles were scattered through large angles. Which statement accounts for this observation?
Feb/March 2020
Three students are describing the arrangement of particles in an atom. student 1: Every positively charged particle is found in the nucleus. student 2: The nucleus contains positive electrons. student 3: Negative electrons move around the nucleus. Which students have made a correct statement?
Feb/March 2021
The symbol shown below represents a nuclide. $^{9}_{4}\text{Be}$ Which row is correct?
Feb/March 2021
Three students are talking about atomic structure. student 1: Every positively charged particle is found in the nucleus. student 2: Positive electrons are located in the nucleus. student 3: Negative electrons move around the nucleus. Which of these students has made a correct statement?
Feb/March 2021
When alpha particles are directed at a thin metal foil, the majority travel through without being deflected. What does this observation show about the structure of the atom?
Feb/March 2021
A rechargeable battery contains lithium. The lithium is present as positive lithium ions. In what way is a lithium ion different from a lithium atom?
Feb/March 2023
An iron nuclide is written as $^{56}_{26}\text{Fe}$. Which of the following statements about the nucleus of this iron nuclide are correct?
Feb/March 2023
The way $\alpha$-particles are scattered by a thin metal foil provides evidence for the nuclear model of the atom. Why are $\alpha$-particles chosen instead of neutrons?
Feb/March 2023
The nuclide of iron is shown by the symbol $^{56}_{26}\text{Fe}$. Which of the following statements about the nucleus of this iron nuclide are correct?
Feb/March 2023
Which statement concerning an atom is correct?
Feb/March 2024
The table presents details for four nuclei. Which nuclei are isotopes of the same element?
Feb/March 2024
A strontium isotope is represented by the nuclide notation $^{84}_{38}\text{Sr}$. In the nucleus of this isotope, how many protons and how many neutrons are present?
Feb/March 2024
What happens in nuclear fusion?
Feb/March 2024
Nuclear reactions occurring in the Sun produce very large amounts of energy. Which statement about this process is correct?
Feb/March 2024
A chemical element contains two isotopes. Which row shows a comparison of the nucleus in one atom of each isotope?
Feb/March 2025
What is the number of neutrons in a nucleus of the nuclide $^{{37}}_{{17}}\text{Cl}$?
May/June 2016
One particular element has a number of isotopes. Which statement concerning these isotopes is correct?
May/June 2016
A neutral atom is made up of electrons moving around a nucleus. Protons and neutrons are found in the nucleus. Which statement about the atom has to be correct?
May/June 2016
The following symbols show five nuclides. $^{{35}}_{{17}}X$ (nuclide 1), $^{{37}}_{{17}}X$ (nuclide 2), $^{{38}}_{{18}}X$ (nuclide 3), $^{{81}}_{{35}}X$ (nuclide 4), $^{{81}}_{{37}}X$ (nuclide 5) Which pair of nuclides are isotopes of the same element?
May/June 2016
A proton and a neutron are both near a positively charged nucleus. In what way, if any, does the nucleus’s charge influence the proton and the neutron?
May/June 2016
The four statements below concern isotopes of a particular element. Which of these statements about the isotopes has to be correct?
May/June 2016
One element possesses several isotopes. Which one of these statements about the isotopes is correct?
May/June 2016
A landmark experiment greatly improved scientists’ understanding of the structure of matter. During the experiment, particles were scattered as they passed through a thin metal foil. Which particles were used, and what conclusion did the experiment produce?
May/June 2016
The symbols for five different nuclides are given below. nuclide 1: $^{{35}}_{{17}}X$ nuclide 2: $^{{37}}_{{17}}X$ nuclide 3: $^{{38}}_{{18}}X$ nuclide 4: $^{{81}}_{{35}}X$ nuclide 5: $^{{81}}_{{37}}X$ Which pair of nuclides are isotopes of the same element?
May/June 2016
Four statements about isotopes of one element are shown below. Which of the statements about the isotopes has to be correct?
May/June 2016
Which diagram shows an experiment that supplied evidence for the nuclear atom?
May/June 2016
State which of A, X or Z represents the chemical symbol, the nucleon number, and the proton number.
May/June 2016
State which letter, A, X or Z, represents the chemical symbol, the nucleon number, and the proton number.
May/June 2016
Which particle carries a negative charge?
May/June 2017
The diagram shows an atom’s nucleus, with the charged particles indicated. Which row states the proton number and the nucleon number for this nucleus?
May/June 2017
Which statement gives the correct description of a neutral copper atom?
May/June 2017
An iodine nuclide is written as $^{131}_{53}\text{I}$. How many neutrons are present in one nucleus of this nuclide?
May/June 2017
Which table row shows the relative charge of an electron, a neutron and a proton?
May/June 2017
Which particle is negatively charged?
May/June 2017
A kind of nuclear reaction occurs in stars. Which row gives the description of this reaction?
May/June 2017
When a source of $\alpha$-particles is aimed at a thin metal foil, the particles are deflected. Which result from this experiment gives evidence for a small charged nucleus?
May/June 2017
Which statement correctly describes a neutral atom of copper?
May/June 2017
In the atomic model, an atom is made up of a central body, with much smaller particles moving around it. What are the names of the central body and the particles that orbit it?
May/June 2018
A neutral atom of argon-40 $\left(^{40}_{18}\text{A}\right)$ is compared with a neutral atom of potassium-39 $\left(^{39}_{19}\text{K}\right)$. Which atom contains more electrons, and which atom contains more protons?
May/June 2018
In the atomic model, an atom is made up of a central mass, with much smaller particles moving around it. What are the names of the central mass and the orbiting particles?
May/June 2018
The table presents the composition of three different nuclei. Which of these nuclei are isotopes of one another?
May/June 2018
In the atomic model, an atom is made up of a central mass with much smaller particles moving around it. What is the name of the central mass and what are the orbiting particles called?
May/June 2018
A lead isotope is written using the nuclide symbol $^{214}_{82}\text{Pb}$. How many protons and how many neutrons are present in a single nucleus of this isotope?
May/June 2018
In the atomic model, an atom has a central mass with much smaller particles moving around it. What are the names of the central mass and the orbiting particles?
May/June 2018
Nuclear fusion is a reaction that occurs in stars. Which row gives the description of this reaction?
May/June 2018
In the atomic model, an atom is made up of a central mass, with much smaller particles moving around it. What are the names of the central mass and the orbiting particles?
May/June 2018
Within the atomic model, an atom is made up of a central mass, with much smaller particles moving around it. What are the names of the central mass and the orbiting particles?
May/June 2018
The nuclides shown below are represented as follows. $^{6}_{3}E\qquad ^{7}_{3}G\qquad ^{6}_{4}L\qquad ^{7}_{5}M$ Which two nuclides are isotopes of one another and belong to the same element?
May/June 2019
A basic model of the atom contains tiny particles moving around a central nucleus. Which row is correct?
May/June 2019
Which statement about atomic structure is correct?
May/June 2019
Which observation supports the nuclear atom?
May/June 2019
$\alpha$-particles are aimed at a metal foil. Most of the particles pass through the foil with very little deflection. A small fraction of the particles are scattered back at large angles. What does this evidence show about the structure of an atom?
May/June 2019
Fig. 9.1 illustrates a beam of $\alpha$-particles travelling towards a thin gold sheet in a vacuum. The labels on the diagram are: gold sheet, beam of $\alpha$-particles, vacuum, and detectors. Detectors placed around the thin gold sheet record the $\alpha$-particles and count how many move in different directions.
May/June 2019
A proton has a charge of $e$. What are the charges of an electron and of a neutron?
May/June 2021
The nuclide symbol for the isotope strontium-90 is $^{90}_{38}\text{Sr}$. Which statement is correct?
May/June 2021
A proton carries a charge of $e$. What charge does an electron have, and what charge does a neutron have?
May/June 2021
The proton numbers and nucleon numbers for four nuclides are listed as: $^{231}_{88}\text{Ra}$, $^{232}_{90}\text{Th}$, $^{238}_{92}\text{U}$, $^{239}_{94}\text{Pu}$. Which statement is correct?
May/June 2021
A proton has charge $e$. What charge does an electron have, and what charge does a neutron have?
May/June 2021
Sodium-23 is written in nuclide notation as $^{23}_{11}\mathrm{Na}$. How many protons does a nucleus of sodium-23 contain?
May/June 2021
A proton has charge $e$. What charge does an electron have, and what charge does a neutron have?
May/June 2021
A proton carries charge $e$. What charge does an electron have, and what charge does a neutron have?
May/June 2021
A proton has charge $e$. What charge does an electron have, and what charge does a neutron have?
May/June 2021
The diagram illustrates $\alpha$-particles striking a thin metal foil. How does the way these particles move provide evidence for the nuclear atom?
May/June 2021
Hydrogen has three naturally occurring isotopes: hydrogen-1, hydrogen-2 and hydrogen-3. The nuclide notation for hydrogen-1 is $^{1}_{1}\text{H}.$
May/June 2021
A model of an atom is made up of tiny particles moving around a central nucleus. Where in an atom is the positive charge located?
May/June 2022
Which statement describes two atoms that are isotopes of one element?
May/June 2022
Atoms of an element may occur as different isotopes. In what way do atoms of different isotopes of the same element differ?
May/June 2022
The hydrogen isotopes are hydrogen-2 ($^{2}_{1}\text{H}$) and hydrogen-3 ($^{3}_{1}\text{H}$).
May/June 2022
Fig. 11.1 illustrates the routes of three $\alpha$-particles approaching a thin gold foil. Four gold nuclei are indicated.
May/June 2022
In what way do atoms form positive and negative ions?
May/June 2023
The nucleus of element $X$ is shown as $^{56}_{26}X$. Which option is an isotope of element $X$?
May/June 2023
Which diagram shows the arrangement of the charged particles in an atom?
May/June 2023
The table gives the composition of three different nuclei. Which nuclei are isotopes of the same element?
May/June 2023
An atom of an element includes electrons, neutrons and protons. Which particles are located in the nucleus?
May/June 2023
A chlorine nuclide is represented by the symbol $^{{35}}_{{17}}\text{Cl}$. What is the nucleon number for this chlorine nuclide?
May/June 2023
How do atoms become positive and negative ions?
May/June 2023
A nucleus of element $X$ is written as $^{56}_{26}X$. Which of the following is an isotope of element $X$?
May/June 2023
The table presents the composition of three distinct nuclei. Which nuclei are isotopes of the same element?
May/June 2023
Which nuclear reaction releases energy that powers a star?
May/June 2023
Research is underway to generate electrical energy by fusing hydrogen nuclei. Which row identifies two of the difficulties involved in designing a fusion reactor?
May/June 2023
The scattering of alpha-particles by a thin gold foil gives these observations. • The majority of the alpha-particles go through the foil. • The majority of the alpha-particles are almost not deflected. • A small proportion of the alpha-particles are deflected by large angles. • A very small proportion of the alpha-particles rebound from the foil. From these observations, which conclusion is not supported?
May/June 2023
A chlorine nuclide is represented by the symbol below. $^{35}_{17}\text{Cl}$ What is the nucleon number of this chlorine nuclide?
May/June 2023
Fig. 9.1 shows an atom of beryllium, and labels A, B and C mark three kinds of particle.
May/June 2023
In a simple model of the atom, tiny particles move in orbits around a central nucleus. Which row is correct?
May/June 2024
What charge does a proton carry, and what charge does a neutron carry?
May/June 2024
The isotope strontium-90 is represented by the nuclide notation $^{90}_{38}\text{Sr}$. Which statement is correct?
May/June 2024
Which statement regarding the structure of an atom is correct?
May/June 2024