Multiple Choice
Which of the following is the correct chemical symbol for titanium?
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2. Atoms & Elements
Periodic Table: Element Symbols
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What is the atomic number of the element osmium (Os) on the periodic table?
A
76
B
74
C
78
D
80
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 periodic table is arranged in order of increasing atomic number, so each element has a unique atomic number.
Locate osmium (Os) on the periodic table, which is a transition metal in the 6th period and group 8.
Identify the atomic number associated with osmium by counting the elements from the start of the periodic table or by referencing a reliable periodic table source.
Confirm that the atomic number of osmium (Os) is 76, meaning it has 76 protons in its nucleus.
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