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Chemistry > C1- Atomic Structure > Flashcards

C1- Atomic Structure Flashcards

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1
Q

Who discovered the smallest particle?

A

Democritus

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2
Q

What year did Democritus discover the smallest particle?

A

600BC

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3
Q

Who discovered the electron?

A

JJ Thompson

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4
Q

What year did Thompson discover the electron?

A

1897

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5
Q

Who discovered the nucleus?

A

Rutherford

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6
Q

What year did Rutherford discover the nucleus?

A

1908-1913

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7
Q

Who discovered the shells?

A

Bohr

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8
Q

What year did Bohr discover the shells?

A

1913

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9
Q

Who discovered the nuetrons?

A

James Chadwick

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10
Q

When did Chadwick discover the neutrons?

A

1932

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11
Q

What do atoms consist of?

A

Nucleus

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12
Q

What does a nucleus contain?

A

Protons and nuetrons

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13
Q

What is the size of the nucleus compared to the size of the whole atom?

A

Tiny

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14
Q

What is the nucleus surrounded by?

A

Electrons

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15
Q

What are the electrons arranged in energy levels?

A

Shells

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16
Q

What is the relative mass of a proton?

A

1

17
Q

What is the relative mass of a neutron?

A

1

18
Q

What is the relative mass of an electron?

A

Tiny 1/2000

19
Q

What is the relative charge of a proton?

A

+1

20
Q

What is the relative charge of a nuetron?

A

0

21
Q

What is the relative charge of a electron?

A

-1

22
Q

What does the atomic number equal?

A

Number of protons

23
Q

What does the mass number equal?

A

Number of protons and number if neutrons

24
Q

What do atoms of the same element have the same number of?

A

Protons

25
Q

What determines the type of atom?

A

Proton

26
Q

Atoms of same element

A

Different mass number

27
Q

Same number of protons

A

Different number of neutrons

Chemistry (10 decks)

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