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Which statement correctly compares the masses of the three primary subatomic particles?
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.
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 __________.
Practice MYP MYP Physics Topic Atomic Physics with authentic exam-style questions for both SL and HL students. This question bank focuses on the exact syllabus content for Atomic Physics and mirrors Paper 1, 2 style where relevant.
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