Everyday Science MCQs (page 6 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 101–120.
- 101.
What is the atomic number of oxygen?
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Answer: B. 8
Oxygen has 8 protons, so its atomic number is 8.
- 102.
Which element has the atomic number 8?
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Answer: A. Oxygen
Atomic number 8 belongs to oxygen (O).
- 103.
What is the chemical symbol of fluorine?
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Answer: A. F
The symbol of fluorine is F.
- 104.
Which element has the chemical symbol F?
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Answer: D. Fluorine
F is the symbol of fluorine.
- 105.
What is the atomic number of fluorine?
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Answer: B. 9
Fluorine has 9 protons, so its atomic number is 9.
- 106.
Which element has the atomic number 9?
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Answer: C. Fluorine
Atomic number 9 belongs to fluorine (F).
- 107.
What is the chemical symbol of neon?
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Answer: B. Ne
The symbol of neon is Ne.
- 108.
Which element has the chemical symbol Ne?
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Answer: C. Neon
Ne is the symbol of neon.
- 109.
What is the atomic number of neon?
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Answer: C. 10
Neon has 10 protons, so its atomic number is 10.
- 110.
Which element has the atomic number 10?
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Answer: B. Neon
Atomic number 10 belongs to neon (Ne).
- 111.
Which element has the chemical symbol Na?
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Answer: B. Sodium
Na is the symbol of sodium. It comes from the Latin name natrium.
- 112.
What is the atomic number of sodium?
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Answer: C. 11
Sodium has 11 protons, so its atomic number is 11.
- 113.
Which element has the atomic number 11?
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Answer: D. Sodium
Atomic number 11 belongs to sodium (Na).
- 114.
Which element has the chemical symbol Mg?
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Answer: D. Magnesium
Mg is the symbol of magnesium.
- 115.
What is the atomic number of magnesium?
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Answer: C. 12
Magnesium has 12 protons, so its atomic number is 12.
- 116.
Which element has the atomic number 12?
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Answer: B. Magnesium
Atomic number 12 belongs to magnesium (Mg).
- 117.
What is the chemical symbol of aluminium?
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Answer: D. Al
The symbol of aluminium is Al.
- 118.
Which element has the chemical symbol Al?
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Answer: B. Aluminium
Al is the symbol of aluminium.
- 119.
What is the atomic number of aluminium?
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Answer: B. 13
Aluminium has 13 protons, so its atomic number is 13.
- 120.
Which element has the atomic number 13?
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Answer: D. Aluminium
Atomic number 13 belongs to aluminium (Al).