Quizzes · Knowledge
Tantalum (Ta) — electronics, corrosion resistance, and compounds: Multiple Choice
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- 01What is the approximate atomic number of tantalum?
- 02Why is tantalum commonly used in electrolytic capacitors?
- 03Tantalum pentoxide (Ta2O5) is valued in electronics primarily for its:
- 04Another mineral name specifically rich in tantalum and closely related to columbite is:
- 05Which oxide of tantalum forms the dielectric layer in tantalum capacitors?
- 06The excellent corrosion resistance of tantalum is mainly due to:
- 07Which tantalum compound is commonly used as a diffusion barrier and in microelectronics (also formed by reactive sputtering)?
- 08The principal ore group mined for tantalum (often called 'coltan' in trade) is:
- 09Which of the following is a well-known hard refractory compound of tantalum used in cutting tools and coatings?
- 10Which property of tantalum metal makes it suitable for medical implants and surgical instruments?