객관식
In the electron cloud model of the atom, which statement best describes the location of electrons?
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2. Atoms & Elements
The Atom
Multiple Choice
What is the atomic number of boron?
A
11
B
6
C
5
D
13
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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 the element in question, which is boron in this case.
Look up the atomic number of boron on the periodic table, which is a fundamental property of the element.
Note that the atomic number of boron is 5, meaning it has 5 protons in its nucleus.
Confirm that the atomic number corresponds to the correct choice among the options provided.
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