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Sci Peoples > Opp > Flashcards

Opp Flashcards

1
Q

1932

A

Chadwick

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2
Q

Chadwick

A

Discovered the neutron

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3
Q

Rutherford

A

Discovered the nucleus and protons

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4
Q

1910+1919

A

Rutherford

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5
Q

Bohr

A

Discovered the orbits of electrons in energy levels

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6
Q

1913

A

Bohr

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7
Q

Millikan

A

Determined the charge of an electron (-1)

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8
Q

1909

A

Millikan

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9
Q

Thomson

A

Discovered the presence of the electron
Plum pudding

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10
Q

1897

A

Thomson

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11
Q

Dalton

A

Began the modern-day study of atoms
Idea that the atom is a solid sphere

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12
Q

1803

A

Dalton

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13
Q

Democritus

A

First theorized the existence of atoms

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14
Q

450 AD

A

Democritus

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Sci Peoples (3 decks)

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