Everyday Science MCQs (page 12 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 221–240.
- 221.
What is the chemical symbol of zirconium?
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Answer: B. Zr
The symbol of zirconium is Zr.
- 222.
Which element has the chemical symbol Zr?
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Answer: A. Zirconium
Zr is the symbol of zirconium.
- 223.
What is the atomic number of zirconium?
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Answer: D. 40
Zirconium has 40 protons, so its atomic number is 40.
- 224.
Which element has the atomic number 40?
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Answer: B. Zirconium
Atomic number 40 belongs to zirconium (Zr).
- 225.
What is the chemical symbol of niobium?
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Answer: A. Nb
The symbol of niobium is Nb.
- 226.
Which element has the chemical symbol Nb?
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Answer: B. Niobium
Nb is the symbol of niobium.
- 227.
What is the atomic number of niobium?
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Answer: C. 41
Niobium has 41 protons, so its atomic number is 41.
- 228.
Which element has the atomic number 41?
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Answer: D. Niobium
Atomic number 41 belongs to niobium (Nb).
- 229.
What is the chemical symbol of molybdenum?
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Answer: B. Mo
The symbol of molybdenum is Mo.
- 230.
Which element has the chemical symbol Mo?
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Answer: C. Molybdenum
Mo is the symbol of molybdenum.
- 231.
What is the atomic number of molybdenum?
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Answer: C. 42
Molybdenum has 42 protons, so its atomic number is 42.
- 232.
Which element has the atomic number 42?
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Answer: D. Molybdenum
Atomic number 42 belongs to molybdenum (Mo).
- 233.
What is the chemical symbol of technetium?
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Answer: B. Tc
The symbol of technetium is Tc.
- 234.
Which element has the chemical symbol Tc?
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Answer: B. Technetium
Tc is the symbol of technetium.
- 235.
What is the atomic number of technetium?
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Answer: B. 43
Technetium has 43 protons, so its atomic number is 43.
- 236.
Which element has the atomic number 43?
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Answer: C. Technetium
Atomic number 43 belongs to technetium (Tc).
- 237.
What is the chemical symbol of ruthenium?
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Answer: D. Ru
The symbol of ruthenium is Ru.
- 238.
Which element has the chemical symbol Ru?
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Answer: B. Ruthenium
Ru is the symbol of ruthenium.
- 239.
What is the atomic number of ruthenium?
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Answer: C. 44
Ruthenium has 44 protons, so its atomic number is 44.
- 240.
Which element has the atomic number 44?
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Answer: D. Ruthenium
Atomic number 44 belongs to ruthenium (Ru).