Everyday Science MCQs (page 9 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 161–180.
- 161.
What is the atomic number of chromium?
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Answer: B. 24
Chromium has 24 protons, so its atomic number is 24.
- 162.
Which element has the atomic number 24?
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Answer: C. Chromium
Atomic number 24 belongs to chromium (Cr).
- 163.
What is the chemical symbol of manganese?
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Answer: B. Mn
The symbol of manganese is Mn.
- 164.
Which element has the chemical symbol Mn?
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Answer: A. Manganese
Mn is the symbol of manganese.
- 165.
What is the atomic number of manganese?
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Answer: B. 25
Manganese has 25 protons, so its atomic number is 25.
- 166.
Which element has the atomic number 25?
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Answer: C. Manganese
Atomic number 25 belongs to manganese (Mn).
- 167.
Which element has the chemical symbol Fe?
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Answer: C. Iron
Fe is the symbol of iron. It comes from the Latin name ferrum.
- 168.
What is the atomic number of iron?
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Answer: B. 26
Iron has 26 protons, so its atomic number is 26.
- 169.
Which element has the atomic number 26?
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Answer: B. Iron
Atomic number 26 belongs to iron (Fe).
- 170.
What is the chemical symbol of cobalt?
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Answer: C. Co
The symbol of cobalt is Co.
- 171.
Which element has the chemical symbol Co?
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Answer: D. Cobalt
Co is the symbol of cobalt.
- 172.
What is the atomic number of cobalt?
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Answer: B. 27
Cobalt has 27 protons, so its atomic number is 27.
- 173.
Which element has the atomic number 27?
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Answer: A. Cobalt
Atomic number 27 belongs to cobalt (Co).
- 174.
What is the chemical symbol of nickel?
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Answer: B. Ni
The symbol of nickel is Ni.
- 175.
Which element has the chemical symbol Ni?
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Answer: C. Nickel
Ni is the symbol of nickel.
- 176.
What is the atomic number of nickel?
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Answer: B. 28
Nickel has 28 protons, so its atomic number is 28.
- 177.
Which element has the atomic number 28?
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Answer: C. Nickel
Atomic number 28 belongs to nickel (Ni).
- 178.
Which element has the chemical symbol Cu?
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Answer: C. Copper
Cu is the symbol of copper. It comes from the Latin name cuprum.
- 179.
What is the atomic number of copper?
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Answer: B. 29
Copper has 29 protons, so its atomic number is 29.
- 180.
Which element has the atomic number 29?
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Answer: D. Copper
Atomic number 29 belongs to copper (Cu).