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Group 5 of the Periodic Table of Elements Chapter Exam

Exam Instructions:

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

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Question 1 1. The chemical symbol of niobium is _____.

Question 2 2. The atomic number of niobium is _____.

Question 3 3. _____ named niobium.

Question 4 4. _____ discovered niobium when he was investigating the mineral columbite.

Question 5 5. Niobium is used to make jewelry because it is

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Question 6 6. Which reason fits with why tantalum capacitors are superior to aluminum capacitors?

Question 7 7. What type of metal is tantalum?

Question 8 8. Someone is trying to sell you a tantalum ring. Which of the following characteristics should you look for to be sure that the ring is made of tantalum?

Question 9 9. Which statement about tantalum is TRUE?

Question 10 10. Which property makes tantalum good to use in metallic alloys?

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Question 11 11. _____ metal was very strong because of an impurity of vanadium.

Question 12 12. Vanadium has _____ protons in its nucleus.

Question 13 13. What is the chemical symbol for vanadium?

Question 14 14. Vanadium was discovered in 1801 by _____.

Question 15 15. Vanadium is a _____.

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Question 16 16. Dubnium was discovered by an American team led by _____

Question 17 17. Dubnium was discovered by a Russian team led by _____.

Question 18 18. The Russian team created dubnium by bombarding

Question 19 19. How many protons does the element dubnium contain?

Question 20 20. Dubnium was named after _____.

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Question 21 21. _____ discovered tantalum and named it after the immortal Tantalus.

Question 22 22. Tantalum is _____, which means it can be stretched into wires.

Question 23 23. Tantalum is a _____ metal.

Question 24 24. _____ isolated pure tantalum and used it to make light bulb filaments.

Question 25 25. The chemical symbol for tantalum is _____.

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Question 26 26. Which kind of athlete might be found using vanadium supplements?

Question 27 27. What can you say about vanadium with respect to its role in human health?

Question 28 28. How is vanadium used most nowadays in medicine?

Question 29 29. What is vanadium?

Question 30 30.

Which of the following are some of vanadium's potential toxic effects?

I. Cancer

II. Irritation to the eyes

III. Irritation to the respiratory tract

Group 5 of the Periodic Table of Elements Chapter Exam Instructions

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

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