Practise MYP Physics questions on 6 Atomic Physics and review the explanations to check your understanding.
Use these questions for topic practice and to find ideas you want to revisit in your notes or lessons.
Which statement correctly compares the masses of the three primary subatomic particles?
A sample of a radioactive isotope is monitored in a laboratory. After a duration equivalent to exactly two half-lives, what percentage of the original unstable nuclei will remain undecayed?
When a nucleus of captures a neutron to become , how are its atomic and mass numbers affected?
A neutral Magnesium atom has an atomic number . If this atom loses 2 electrons to form a stable ion, how many electrons does the resulting ion possess?
Fill in the blank: In the standard nuclear notation , the value represents the total number of __________.
Protons and neutrons have nearly identical masses, while electrons are significantly lighter.
Neutrons are significantly heavier than both protons and electrons.
All three subatomic particles have approximately the same mass.
Electrons and protons have nearly identical masses, while neutrons are much heavier.
Both the atomic and mass numbers stay the same
The atomic number increases but the mass number stays the same
The mass number increases but the atomic number stays the same
Both the atomic and mass numbers increase by 1
10
12
14
24
electrons
protons
nucleons
isotopes
