Short-Answer Questions
1. What is an element?
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1
Answer:
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Explanation:
A substance which cannot be broken down into two or more simpler substances by chemical reactions is called an element.
Example: Iron,hydrogen,helium,oxygen,phosphorus,sulphur,chlorine,bromine,gold,silver,mercury, aluminium etc.
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Answered by
2
Answer:
Answer:An element is a substance that is made entirely from one type of atom. For example, the element hydrogen is made from atoms containing a single proton and a single electron. Currently, scientists know of 118 different elements. Some, like gold, silver, copper and carbon, have been known for thousands of years.
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