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Questions and Answers
Which element is the lightest on the periodic table?
Which element is the lightest on the periodic table?
- Nitrogen
- Hydrogen (correct)
- Oxygen
- Carbon
Which element is the most abundant in the Earth's crust?
Which element is the most abundant in the Earth's crust?
- Oxygen (correct)
- Iron
- Silicon
- Aluminum
Which element is a noble gas?
Which element is a noble gas?
- Potassium
- Lithium
- Helium (correct)
- Sodium
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