Multiple Choice
Which group on the periodic table contains elements with the most diverse physical and chemical properties?
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2. Atoms & Elements
Periodic Table: Classifications
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Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
Which characteristic of an element determines its placement in the periodic table?
A
Atomic number
B
Atomic mass
C
Density
D
Number of neutrons
Verified step by step guidance1
Understand that the periodic table is organized based on a fundamental property of elements that reflects their identity and chemical behavior.
Recall that the atomic number of an element is defined as the number of protons in the nucleus of its atoms.
Recognize that the atomic number uniquely identifies an element and determines its position in the periodic table, as elements are arranged in order of increasing atomic number.
Note that atomic mass, density, and number of neutrons can vary among isotopes and do not determine the element's placement in the periodic table.
Conclude that the characteristic determining an element's placement in the periodic table is its atomic number.
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