5 Questions
What is the basic particle of the chemical elements?
Proton
How are atoms distinguished from each other?
By the number of protons they contain
What is the term used for atoms with the same number of protons but a different number of neutrons?
Isotopes
What is the overall charge of an atom if it has more electrons than protons?
Negative
What constitutes more than 99.94% of an atom's mass?
Nucleus
Test your knowledge of atomic structure, including protons, neutrons, electrons, and isotopes of chemical elements.
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