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Questions and Answers
What is an element and how is it defined?
What is an element and how is it defined?
An element is a substance that cannot be divided into simpler substances by chemical reactions. It was first suggested by Robert Boyle in the 17th century.
What were the four elements believed by the ancient Greeks?
What were the four elements believed by the ancient Greeks?
The ancient Greeks believed that all matter was made up of four elements: air, earth, fire, and water.
What were the five elements believed by the ancient Chinese?
What were the five elements believed by the ancient Chinese?
The ancient Chinese believed that all matter was made up of five elements: gold, wood, water, fire, and earth.
How many elements occur naturally and how many are man-made?
How many elements occur naturally and how many are man-made?
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Which two elements are the most abundant in our universe?
Which two elements are the most abundant in our universe?
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