객관식
How are elements arranged on the periodic table?
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2. Atoms & Elements
Periodic Table: Classifications
Multiple Choice
How are elements organized on the periodic table?
A
By alphabetical order of element names
B
By increasing atomic number
C
By the number of neutrons in the nucleus
D
By increasing atomic mass
검증된 단계별 안내1
Understand that the periodic table is a systematic arrangement of elements based on their atomic structure.
Recall that each element is defined by its atomic number, which is the number of protons in its nucleus.
Recognize that the periodic table is organized in order of increasing atomic number, not by alphabetical order, number of neutrons, or atomic mass.
Note that arranging elements by increasing atomic number groups elements with similar chemical properties into columns called groups or families.
This organization helps predict element behavior and trends in properties such as electronegativity, ionization energy, and atomic radius.
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