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What element is represented by au?
The element represented by Au is gold.
What is a sample of matter either a single element or a single compound?
a pure substance! ;)
Can an element be represented as a chemical formula?
Yes, an element can be represented as a chemical formula. Each element is identified by a unique chemical symbol, such as "H" for hydrogen or "O" for oxygen. Chemical formulas are used to represent the composition of compounds, which are combinations of elements.
Is hydrogen a mixture?
Hydrogen is not a mixture; it is a chemical element represented by the symbol H on the periodic table. It is the lightest and most abundant element in the universe.
What number represents the number of protons in an atom?
Protons are represented by the atomic number of an element. The number of protons is also the number of electrons. The number of protons is also represented in re Atomic Mass, which is the number of protons and the number of neutrons combined.
