Thread: MCQ's
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Old Monday, October 15, 2012
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Quote:
Originally Posted by Vigorous Eagle View Post
1.Oxygen was discovered by ?

2.Electron was discovered by ?
Joseph Priestley and Carl Wilhelm Scheele both independently discovered oxygen, but Priestly is usually given credit for the discovery in 1774.

The electron was identified and assigned the negative charge in 1897 by John Joseph Thomson (J.J. Thomson).
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