Quiz on Niobium

Who discovered Niobium?

• John Dalton

• Charles Hatchett

• Christian Blomstrand

• Heinrich Rose

What is the atomic number of Niobium?

• 41

• 43

• 40

• 42

What is the melting point of Niobium?

• 2000°C

• 1500°C

• 3000°C

• 2477°C

Which mineral is the main source of Niobium?

• Bauxite

• Columbite

• Hematite

• Tantalite

What is the electron configuration of Niobium?

• [Kr] 5s24d3

• [Ar] 3d104s2

• [Kr] 4d45s1

• [Xe] 6s24f145d1

What is the primary use of Niobium in the aerospace industry?

• Fuel tanks

• Superconducting magnets

• Propellers

• Landing gear

What is the boiling point of Niobium?

• 5000°C

• 4500°C

• 4000°C

• 4741°C

What is the density of Niobium?

• 6.94 g cm−3

• 9.81 g cm−3

• 7.87 g cm−3

• 8.57 g cm−3

Which of the following is a key isotope of Niobium?

• 92Nb

• 93Nb

• 95Nb

• 94Nb

What is the origin of the name 'Niobium'?

• Named after a scientist

• Named after a mythological figure

• Named after a mineral

• Named after a Greek goddess