GK
INVENTIONS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Sodium was discovered by
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Sir Humphry Davy
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John von Neumann
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James Watson
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John Bardeen
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Explanation:
Detailed explanation-1: -On 30 June 1808 Davy reported to the Royal Society that he had successfully isolated four new metals which he named barium, calcium, strontium and magnium (later changed to magnesium) which were subsequently published in the Philosophical Transactions.
Detailed explanation-2: -Humphry Davy was a chemist and inventor who invented the Davy lamp and a very early form of arc lamp. He was director of the Ri from 1801–1825.
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