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Questions and Answers
Which of the following statements about atoms is true?
Which of the following statements about atoms is true?
- There are only 91 different elements found in nature
- Atoms can be broken down into simpler substances
- Atoms are the smallest unit of matter (correct)
- Atoms are composed of multiple types of elements
What is an element?
What is an element?
- A substance that can be broken down into simpler substances
- A substance composed of atoms and molecules
- A substance composed of multiple types of atoms
- A substance composed of only one type of atoms (correct)
How many elements are found in nature?
How many elements are found in nature?
- 20
- Unknown
- 1008
- 91 (correct)
How many elements are synthetically made by scientists?
How many elements are synthetically made by scientists?
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Do all atoms exist as elements?
Do all atoms exist as elements?
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Which theory proposed that all matter is made up of atoms?
Which theory proposed that all matter is made up of atoms?
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What is the smallest identifiable unit of an element?
What is the smallest identifiable unit of an element?
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Which subatomic particle has a positive charge?
Which subatomic particle has a positive charge?
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What is the average mass of an element's atoms called?
What is the average mass of an element's atoms called?
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What is the number of protons in an atom called?
What is the number of protons in an atom called?
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