Trivia Quiz About Barium

1. Which of the following is the atomic number of Barium?

39

48

56

69

Barium has an atomic number of 56. The atomic number represents the number of protons in the nucleus of an atom, and it is unique to each element. In the periodic table, elements are arranged in order of increasing atomic number. Therefore, 56 is the correct answer for the atomic number of Barium.

Explanation

Barium has an atomic number of 56. The atomic number represents the number of protons in the nucleus of an atom, and it is unique to each element. In the periodic table, elements are arranged in order of increasing atomic number. Therefore, 56 is the correct answer for the atomic number of Barium.

2. What position is Barium in group 2?

Fifth

First

Third

Second

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Explanation

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3. When was Barium reduced to a metal?

1808

1758

1793

1825

In 1808, Barium was reduced to a metal.

Explanation

In 1808, Barium was reduced to a metal.

4. When Barium compounds are added to fireworks, which colour is the outcome?

Red

Yellow

Blue

Green

When Barium compounds are added to fireworks, the outcome is green color. This is because Barium compounds, when ignited, emit green light. This green color is commonly used in fireworks displays to create vibrant and visually appealing effects in the night sky.

Explanation

When Barium compounds are added to fireworks, the outcome is green color. This is because Barium compounds, when ignited, emit green light. This green color is commonly used in fireworks displays to create vibrant and visually appealing effects in the night sky.

5. What is the Shear modulus of Barium?

4.9 GPa

5.9 GPa

8.5 GPa

3.5 GPa

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Explanation

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6. When was Barium identified as an element?

1887

1774

1508

1769

Barium was identified as an element in 1774. This means that scientists discovered and recognized barium as a distinct substance during that year.

Explanation

Barium was identified as an element in 1774. This means that scientists discovered and recognized barium as a distinct substance during that year.

7. Which of the following is the Pauling scale of Barium?

0.89

7.12

1.53

0.95

The Pauling scale is a measure of electronegativity, which indicates the ability of an atom to attract electrons towards itself in a chemical bond. Barium, being an alkaline earth metal, has a relatively low electronegativity value. Among the given options, 0.89 is the lowest value and therefore the correct answer for the Pauling scale of Barium.

Explanation

The Pauling scale is a measure of electronegativity, which indicates the ability of an atom to attract electrons towards itself in a chemical bond. Barium, being an alkaline earth metal, has a relatively low electronegativity value. Among the given options, 0.89 is the lowest value and therefore the correct answer for the Pauling scale of Barium.

8. Which of the following is true about barium ion and soluble compounds?

They are good for fireworks

They're used for making salt

They're good ingredients for air fresheners

They're poisonous

Barium ions and soluble compounds are poisonous.

Explanation

Barium ions and soluble compounds are poisonous.

9. Which of the following is the Bulk modulus of Barium?

10.16 GPa

7.15 GPa

9.57 GPa

9.6 GPa

The correct answer for the Bulk modulus of Barium is 9.6 GPa.

Explanation

The correct answer for the Bulk modulus of Barium is 9.6 GPa.

10. Which of the following is the Mohs hardness of Barium?

1.25

18.4

2.72

6.59

The Mohs hardness scale is used to measure the hardness of minerals based on their ability to scratch other materials. It ranges from 1 to 10, with 1 being the softest and 10 being the hardest. Barium has a Mohs hardness of 1.25, which indicates that it is a relatively soft mineral.

Explanation

The Mohs hardness scale is used to measure the hardness of minerals based on their ability to scratch other materials. It ranges from 1 to 10, with 1 being the softest and 10 being the hardest. Barium has a Mohs hardness of 1.25, which indicates that it is a relatively soft mineral.