Multiple Choice
Where on the periodic table are the most active metals typically located?
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2. Atoms & Elements
Periodic Table: Representative Elements & Transition Metals
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Which three elements are the most abundant in Earth's crust?
A
Magnesium, potassium, titanium
B
Oxygen, silicon, aluminum
C
Carbon, hydrogen, nitrogen
D
Iron, calcium, sodium
Verified step by step guidance1
Understand that the Earth's crust is composed mainly of certain elements that are abundant due to their chemical and geological properties.
Recall that oxygen is the most abundant element in the Earth's crust because it forms oxides with many other elements, making up a large part of minerals.
Recognize that silicon is the second most abundant element, primarily because it forms silicate minerals, which are the most common group of minerals in the crust.
Identify aluminum as the third most abundant element, as it is a major component of many minerals such as feldspars and clays.
Conclude that the three most abundant elements in the Earth's crust are oxygen, silicon, and aluminum, based on their prevalence in common minerals.
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