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Questions and Answers
What is the chemical symbol for the element named after the Japanese word for Japan?
What is the chemical symbol for the element named after the Japanese word for Japan?
- Rb
- Au
- Cu
- Nh (correct)
Which element is the main fuel of the stars?
Which element is the main fuel of the stars?
- Hydrogen (correct)
- Iron
- Lithium
- Helium
What is the chemical symbol for the element that is the main metallic element in chalk and other forms of limestone?
What is the chemical symbol for the element that is the main metallic element in chalk and other forms of limestone?
- Al
- Fe
- Sn
- Ca (correct)
Which element is used in the treatment of depression and is also used in batteries?
Which element is used in the treatment of depression and is also used in batteries?
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Which element is the only metal that is liquid at room temperature?
Which element is the only metal that is liquid at room temperature?
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Which element is the central element in chlorophyll?
Which element is the central element in chlorophyll?
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Study Notes
Chemical Symbols and Elements
- The element named after the Japanese word for Japan is Nihonium (Nh).
- The main fuel of stars is Hydrogen (H), primarily undergoing nuclear fusion to produce helium and energy.
- The main metallic element in chalk and forms of limestone is Calcium (Ca).
- Lithium (Li) is used in the treatment of depression and is also an important component in batteries, particularly lithium-ion batteries.
- The only metal that is liquid at room temperature is Mercury (Hg), notable for its applications in thermometers and barometers.
- The central element in chlorophyll, essential for photosynthesis in plants, is Magnesium (Mg).
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