Everyday Science MCQs (page 8 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 141–160.
- 141.
Which element has the chemical symbol K?
Show answer
Answer: B. Potassium
K is the symbol of potassium. It comes from the Latin name kalium.
- 142.
What is the atomic number of potassium?
Show answer
Answer: C. 19
Potassium has 19 protons, so its atomic number is 19.
- 143.
Which element has the atomic number 19?
Show answer
Answer: C. Potassium
Atomic number 19 belongs to potassium (K).
- 144.
Which element has the chemical symbol Ca?
Show answer
Answer: A. Calcium
Ca is the symbol of calcium.
- 145.
What is the atomic number of calcium?
Show answer
Answer: B. 20
Calcium has 20 protons, so its atomic number is 20.
- 146.
Which element has the atomic number 20?
Show answer
Answer: C. Calcium
Atomic number 20 belongs to calcium (Ca).
- 147.
What is the chemical symbol of scandium?
Show answer
Answer: A. Sc
The symbol of scandium is Sc.
- 148.
Which element has the chemical symbol Sc?
Show answer
Answer: C. Scandium
Sc is the symbol of scandium.
- 149.
What is the atomic number of scandium?
Show answer
Answer: C. 21
Scandium has 21 protons, so its atomic number is 21.
- 150.
Which element has the atomic number 21?
Show answer
Answer: B. Scandium
Atomic number 21 belongs to scandium (Sc).
- 151.
What is the chemical symbol of titanium?
Show answer
Answer: B. Ti
The symbol of titanium is Ti.
- 152.
Which element has the chemical symbol Ti?
Show answer
Answer: C. Titanium
Ti is the symbol of titanium.
- 153.
What is the atomic number of titanium?
Show answer
Answer: C. 22
Titanium has 22 protons, so its atomic number is 22.
- 154.
Which element has the atomic number 22?
Show answer
Answer: B. Titanium
Atomic number 22 belongs to titanium (Ti).
- 155.
What is the chemical symbol of vanadium?
Show answer
Answer: C. V
The symbol of vanadium is V.
- 156.
Which element has the chemical symbol V?
Show answer
Answer: B. Vanadium
V is the symbol of vanadium.
- 157.
What is the atomic number of vanadium?
Show answer
Answer: C. 23
Vanadium has 23 protons, so its atomic number is 23.
- 158.
Which element has the atomic number 23?
Show answer
Answer: A. Vanadium
Atomic number 23 belongs to vanadium (V).
- 159.
What is the chemical symbol of chromium?
Show answer
Answer: B. Cr
The symbol of chromium is Cr.
- 160.
Which element has the chemical symbol Cr?
Show answer
Answer: D. Chromium
Cr is the symbol of chromium.