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Mark the following statements as true or false. If a statement is false, correct it to make a true statement.
Valence electrons are the electrons in the outermost shell of an atom.
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2. Cell Chemistry & Cell Components
Atoms- Smallest Unit of Matter
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Which of the following is a trace element found in the human body?
A
Oxygen
B
Hydrogen
C
Iron
D
Carbon
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Understand the definition of trace elements: Trace elements are minerals present in living tissues in small amounts, essential for various physiological functions.
Identify the elements listed in the problem: Oxygen, Hydrogen, Iron, and Carbon.
Recall the common trace elements in the human body: These include Iron, Zinc, Copper, Manganese, Selenium, Iodine, and others.
Compare the elements listed in the problem with the known trace elements: Oxygen, Hydrogen, and Carbon are major elements, not trace elements.
Conclude that Iron is the trace element among the options provided, as it is essential for functions like oxygen transport in hemoglobin.
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