Atomic Structure Scientists Flashcards

0
Q

Who was the father of the modern atomic theory?

A

John dalton

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1
Q

who named the smallest piece of matter the atom?

A

Democtitus

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2
Q

Dalton’s atomic theory (4 parts)

A

All elements are composed of atoms. Atoms are indivisible and indestructible particles
Atoms of the same element are exactly alike
Atoms if different elements are different
Compounds are formed by the joining of atoms of two or more elements

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3
Q
Cathode Ray Experiment
Discovered Electrons (negative charge)
A

J. J. Thomson

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4
Q

Gold foil experiment
Discovered the nucleus (positive charge) -proton
1st to compare to plants around the sun

A

Ernest rutherford

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5
Q

The farther the energy level is from the nucleus, the greater the energy of the electron

A

Bohr

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6
Q

Wave model

A

DeBroglie

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7
Q

Uncertainty principle

A

Heidenberg

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8
Q

Discovered neutrons

A

Chadwick

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9
Q

Democritus

A

Named the smallest piece of matter the atom

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10
Q

John dalton

A

Father of modern atomic theory

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11
Q

JJ Thomson

A
Cathode Ray Experiment
Discovered Electrons (negative charge)
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12
Q

Ernest Rutherford

A

Gold foil experiment
Discovered the nucleus (positive charge) -proton
1st to compare to plants around the sun

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13
Q

Bohr

A

The farther the energy level is from the nucleus, the greater the energy of the electron

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14
Q

DeBroglie

A

Wave model

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15
Q

Heidenberg

A

Uncertainty principle

16
Q

Chadwick

A

Discovered neutrons