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Which element has 16 protons in its nucleus?
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2. Atoms & Elements
Periodic Table: Element Symbols
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Which of the following is the atomic number of gold (Au)?
A
79
B
47
C
82
D
29
Guida verificata passo dopo passo1
Understand that the atomic number of an element is the number of protons in the nucleus of an atom of that element.
Recall that each element on the periodic table has a unique atomic number that identifies it.
Look up the element gold (Au) on the periodic table to find its atomic number.
Note that the atomic number of gold (Au) is 79, which means gold atoms have 79 protons.
Compare the given options (47, 82, 29) with the atomic number of gold and identify that none of these match gold's atomic number, which is 79.
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