Everyday Science MCQs (page 20 of 51)
Physics, chemistry, biology, the human body, units and the solar system, covering the everyday science section of general-ability tests.
1,014 questions. Select an option to check your answer, or open "Show answer". Showing 381–400.
- 381.
What is the atomic number of mercury?
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Answer: C. 80
Mercury has 80 protons, so its atomic number is 80.
- 382.
Which element has the atomic number 80?
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Answer: D. Mercury
Atomic number 80 belongs to mercury (Hg).
- 383.
What is the chemical symbol of thallium?
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Answer: A. Tl
The symbol of thallium is Tl.
- 384.
Which element has the chemical symbol Tl?
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Answer: D. Thallium
Tl is the symbol of thallium.
- 385.
What is the atomic number of thallium?
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Answer: B. 81
Thallium has 81 protons, so its atomic number is 81.
- 386.
Which element has the atomic number 81?
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Answer: B. Thallium
Atomic number 81 belongs to thallium (Tl).
- 387.
Which element has the chemical symbol Pb?
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Answer: B. Lead
Pb is the symbol of lead. It comes from the Latin name plumbum.
- 388.
What is the atomic number of lead?
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Answer: C. 82
Lead has 82 protons, so its atomic number is 82.
- 389.
Which element has the atomic number 82?
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Answer: A. Lead
Atomic number 82 belongs to lead (Pb).
- 390.
What is the chemical symbol of bismuth?
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Answer: A. Bi
The symbol of bismuth is Bi.
- 391.
Which element has the chemical symbol Bi?
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Answer: C. Bismuth
Bi is the symbol of bismuth.
- 392.
What is the atomic number of bismuth?
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Answer: D. 83
Bismuth has 83 protons, so its atomic number is 83.
- 393.
Which element has the atomic number 83?
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Answer: B. Bismuth
Atomic number 83 belongs to bismuth (Bi).
- 394.
What is the chemical symbol of polonium?
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Answer: D. Po
The symbol of polonium is Po.
- 395.
Which element has the chemical symbol Po?
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Answer: C. Polonium
Po is the symbol of polonium.
- 396.
What is the atomic number of polonium?
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Answer: C. 84
Polonium has 84 protons, so its atomic number is 84.
- 397.
Which element has the atomic number 84?
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Answer: B. Polonium
Atomic number 84 belongs to polonium (Po).
- 398.
What is the chemical symbol of astatine?
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Answer: D. At
The symbol of astatine is At.
- 399.
Which element has the chemical symbol At?
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Answer: D. Astatine
At is the symbol of astatine.
- 400.
What is the atomic number of astatine?
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Answer: B. 85
Astatine has 85 protons, so its atomic number is 85.