Erbium #68

iypt

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QUIZ CONTEST

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Quiz on Erbium

1 / 5

Who discovered Erbium?

2 / 5

The pink ion of Erbium is florescent and glows under day light and fluorescent light. Which one the following is the pink ion?

3 / 5

Which of the following is not the application of Erbium?

4 / 5

Erbium is not used as a photographic filter

5 / 5

The principal commercial sources of erbium are from the minerals xenotime and euxenite.

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