Calcium Quiz: questions and answers

1. What is the chemical symbol of calcium?

CO

Ca

Ka

2. What is the atomic number of calcium?

24

20

40

3. What is the Latin name of "calcium"?

Khalc

Calx

Kalc

4. When was pure calcium isolated via electrolysis for the first time?

1780

1808

1820

5. Who discovered the calcium?

Humphry Davy

Mickel Farade

William Forst

6. How many atoms are there in a calcium?

Twenty electrons

Eleven electrons

Five electrons

7. How many stable isotopes are there in natural calcium?

4

5

6

8. How many valence electrons does calcium have?

2

3

4

9. What is the melting temperature of calcium metal?

890 °C

900 °C

842 °C

10. What is calcium good for in the human body?

Bones

Brain

Stomach

Log in

Calcium Quiz: questions and answers

Test yourself

1. What is the chemical symbol of calcium?

2. What is the atomic number of calcium?

3. What is the Latin name of "calcium"?

4. When was pure calcium isolated via electrolysis for the first time?

5. Who discovered the calcium?

6. How many atoms are there in a calcium?

7. How many stable isotopes are there in natural calcium?

8. How many valence electrons does calcium have?

9. What is the melting temperature of calcium metal?

10. What is calcium good for in the human body?

Finished the quiz? Try more