3 Questions
What uniquely identifies an element and determines its position on the periodic table?
Atomic number
Which of the following represents the total number of protons and neutrons in an atom?
Mass number
What term is used to describe atoms of the same element with different numbers of neutrons?
Isotopes
Study Notes
4.5 Atomic number and mass number 4.5.1 Atomic number 4.5.2 Mass number 4.6 Isotopes 4.6.1 Isob
Test your knowledge of atomic number, mass number, and isotopes with this quiz. Identify what uniquely identifies an element, determine the total number of protons and neutrons, and understand the term used for atoms of the same element with different neutron numbers.
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