The periodic table is based on an element's
A) molecular mass.
B) molecular size.
C) atomic number.
D) atomic mass.
Answer (2)
The periodic table is primarily organized based on an element's atomic number , which represents the number of protons in an atom's nucleus. This system allows for the systematic arrangement of elements according to their chemical properties. Atomic mass and molecular size are additional characteristics but do not determine the table's structure. ;
The periodic table is organized based on an element's atomic number, which is the number of protons in the nucleus. This systematic arrangement allows for understanding of chemical properties and trends among elements. Therefore, the correct answer is C) atomic number.
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