Multiple Choice
Which scientist is most widely credited with the development of the modern periodic table?
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2. Atoms & Elements
Periodic Table: Classifications
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How many elements are currently recognized in the modern periodic table?
A
120
B
118
C
104
D
92
Verified step by step guidance1
Understand that the question asks for the number of elements currently recognized in the modern periodic table, which includes all naturally occurring and synthesized elements.
Recall that the periodic table is organized by increasing atomic number, and each element corresponds to a unique atomic number representing the number of protons in its nucleus.
Recognize that the modern periodic table officially includes elements up to atomic number 118, which have been discovered and confirmed by scientific organizations such as IUPAC.
Note that elements beyond 118 have not yet been officially recognized or confirmed, so the total count remains at 118.
Therefore, the number of elements currently recognized in the modern periodic table is 118.
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