Multiple Choice
Which of the following is the correct chemical symbol for the element manganese?
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- 1. Intro to General Chemistry3h 46m
- Classification of Matter18m
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- Magnetic Properties of Complex Ions: Octahedral Complexes11m
2. Atoms & Elements
Periodic Table: Element Symbols
Multiple Choice
What is the atomic number of the element silicon (Si)?
A
14
B
12
C
28
D
16
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Verified step by step guidance1
Understand that the atomic number of an element is the number of protons in the nucleus of an atom of that element.
Recall that the atomic number uniquely identifies an element on the periodic table.
Locate silicon (Si) on the periodic table to find its atomic number.
Note that silicon is in period 3 and group 14 of the periodic table.
Identify the atomic number of silicon as 14, which corresponds to the number of protons in silicon atoms.
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