객관식
Which of the following is the atomic symbol for the element located in group 4 (IVB) and period 4 of the periodic table?
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Multiple Choice
Which of the following is the atomic number of bromine (Br)?
A
17
B
80
C
35
D
53
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검증된 단계별 안내1
Recall that the atomic number of an element is the number of protons in the nucleus of an atom of that element.
Identify bromine (Br) on the periodic table to find its atomic number.
Locate bromine in the periodic table, which is in group 17 and period 4.
Note the atomic number listed for bromine, which corresponds to the number of protons in bromine atoms.
Compare the given options to the atomic number found on the periodic table to select the correct answer.
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