The Elements - Robert Doyle - Humphry Davy Flashcards

1
Q

Define an element.

A

An element is a substance that cannot be split into simpler substances by chemical means

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2
Q

What did Robert Boyle do?

A

The first accurate definition of an element was given by an Irish chemist called Robert Boyle

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3
Q

What did Robert Boyle also predict?

A

He predicted that elements combined together in chemical reactions to form what are now called compounds.

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4
Q

What did Humphry Davy do?

A

He discovered many elements by passing electricity through their compounds. He discovered potassium.

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5
Q

List the elements that Humphry Davy discovered

A

potassium, sodium, calcium, barium, strontium and magnesium by passing electricity through compounds containing these elements.

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