객관식
How many synthetic elements are currently recognized on the periodic table of elements?
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2. Atoms & Elements
Periodic Table: Element Symbols
객관식
Atoms of which element contain 25 protons?
A
Iron (Fe)
B
Nickel (Ni)
C
Manganese (Mn)
D
Magnesium (Mg)
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검증된 단계별 안내1
Recall that the number of protons in an atom defines the atomic number of an element.
Identify the atomic number of each element listed: Iron (Fe) has 26 protons, Nickel (Ni) has 28 protons, Manganese (Mn) has 25 protons, and Magnesium (Mg) has 12 protons.
Match the atomic number 25 to the corresponding element, which is Manganese (Mn).
Understand that the atomic number is unique to each element and determines its identity on the periodic table.
Therefore, atoms containing 25 protons are atoms of Manganese (Mn).
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