moleculis.com
Chemistry, Biology
Climate Change
Microbiology
Biomedicine
Virus, Bacteria
Paleontology
Oncology
Screen Time Linked to Lower Language Skills in Toddlers
Study Suggests Ancient Seas Hosted Hyper-Apex Predators
Bacteria Linked to Alzheimer’s Sneak Into Brain Through Smell and Touch Nerves
Jupiter’s Clouds Not What They Seem, Study Finds Deeper Ammonia Presence
Scientists Use Plant Health to Detect Hidden Volcanic Activity in Yellowstone
Lifestyle Influences Brain Resilience Among Aging Population
Researchers Find No Increase in Size of Giant Antarctic Icebergs Over 47 Years
Reducing Plastic Toxins Could Prevent Hundreds of Thousands of Deaths
Ideal Gas Law Calculator
PV = nRT
Enthalpy Change Calculator
ΔH = ΔU + p × ΔV
ΔH = m × c × ΔT
Gibbs Free Energy Calculator
ΔG and ΔG°
Rydberg Equation Calculator
Find λ using Rydberg formula
Combined Gas Law Calculator
P1V1/T1 = P2V2/T2
Our Mission
Learn about our vision, values, and goals as a company.
Our History
Discover how we started and how we grew in our industry.
Our Team
Meet our talented and passionate team members who make our company what it is.
Our Partners
Find out who we work with and how we create synergies with our partners.
Math and Physics
Algebra, Geometry, Trigonometry, Force, Energy, Velocity.
Chemistry and Biology
pH, Molarity, Enthalpy, Concentration, Genetics, Cell Growth.
Finance and Law
Interest Rates, Mortgages, Taxes, Legal Fees, Contract Terms.
Fitness and Health
BMI, Caloric Intake, Heart Rate, Body Fat Percentage, Exercise Metrics.
Everyday Life
Time Conversion, Distance, Temperature, Volume, Weight.
Statistics
Mean, Median, Standard Deviation, Probability, Correlation.
Sports
Scoring, Statistics, Performance Metrics, Fantasy Points, Athlete Comparisons.
Constructions
Area, Volume, Material Quantities, Cost Estimation, Load Calculations.
Subatomic Particles Quiz
This A-Level Chemistry quiz assesses your knowledge of subatomic particles and their properties. Review the topic before the quiz here: Subatomic particles revision notes and worksheet.
1 / 10
1. Which of the following statements about subatomic particles is correct?
d) Protons, located in the nucleus, define the element. The number of protons is the atomic number.
2 / 10
2. An atom of an element has a mass number of 40 and an atomic number of 18. Which of the following represents the number of protons, neutrons, and electrons in this atom?
a) Mass number (40) = protons (18) + neutrons. Neutrons = 40 - 18 = 22. The atom is neutral, so the number of protons equals the number of electrons.
3 / 10
3. Which of the following pairs represents isotopes of the same element?
a) Isotopes have the same number of protons (same element) but different numbers of neutrons (different mass numbers).
4 / 10
4. The relative atomic mass of chlorine is 35.5. This indicates that:
b) A non-whole number relative atomic mass indicates the presence of isotopes, as it's a weighted average.
5 / 10
5. Which of the following best explains why isotopes of the same element have the same chemical properties?
c) Chemical properties are determined by the number and arrangement of electrons, which are the same for isotopes of an element.
6 / 10
6. An ion of element X has a charge of +2 and contains 10 electrons. How many protons are in the nucleus of element X?
c) The ion has a +2 charge, meaning it has lost 2 electrons. Since it has 10 electrons, it must have 10 + 2 = 12 protons.
7 / 10
7. Which of the following is not a use of radioactive isotopes?
d) Relative atomic mass is determined using stable (non-radioactive) isotopes.
8 / 10
8. Which subatomic particle contributes negligibly to the mass of an atom?
c) Electrons have a mass of approximately 1/1836 amu, which is negligible compared to protons and neutrons.
9 / 10
9. Which statement is incorrect regarding relative atomic mass?
d) Relative atomic mass is usually not a whole number because it's a weighted average of isotopic masses.
10 / 10
10. Element Y has two isotopes: ⁷⁰Y (20% abundance) and ⁷²Y (80% abundance). What is the relative atomic mass of Y?
b) Relative Atomic Mass (Ar) = (70 × 20) + (72 × 80) / 100 = 71.6
Your score is
The average score is 0%
Restart quiz
Please rate this quiz. Your feedback helps us make it better.
Thank you for your feedback.
Functional Groups Quiz | Organic Chemistry
Atomic and Ionic Radii Quiz | AS Chemistry
Subatomic Particles Quiz | A Level Chemistry
Paper Chromatography and Rf Value Quiz
Solubility Quiz | Chemistry
Chemical Equilibrium | Chemistry Quiz (21 Questions)
Properties of Solids | Chemistry Quiz
Quiz: Properties of Liquids and Water
Properties of Gases Quiz
Theories of Covalent Bonding and Shapes of Molecules Quiz
You must be logged in to post a comment.
