What is the only letter in the alphabet that does not appear anywhere on the periodic table of elements?

What is the only letter in the alphabet that does not appear anywhere on the periodic table of elements?

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What has a spot and is very bright, is sometimes, red, white, blue, yellow or green and is often blinding.

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I am the red tongue of the earth, that buries cities.

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Riddle of the Day

Feb 13, 2026

Written on with words of white, Has the color of the night, Is the teacher's best delight, And a student's daily fright

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