Atomic Structure Flashcards

1
Q

Does the number of protons determine the identity of an element?

A

YES

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2
Q

Did Eugen Goldstein determine the mass and charge of the electron using the oil drop apparatus?

A

NO

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3
Q

Did Jame Chadwick confirm the existence of the neutron?

A

YES

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4
Q

Is an alpha particle a helium atom?

A

NO

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5
Q

Did JJ Thomson conclude that the atom was divisible?

A

YES

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6
Q

Did Ernest Rutherford find that the nucleus is tiny compared to the atom as a whole?

A

YES

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7
Q

Did Robert Millikan discover the electron?

A

NO

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8
Q

Does the cathode become the negatively charged end of the cathode ray tube?

A

YES

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9
Q

Did Ernest Rutherford perform the Gold foil Experiment?

A

YES

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10
Q

Was the cathode ray tube used to discover the neutron?

A

NO

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11
Q

In Dalton’s theory of the atom - does it still hold true today that all elements are composed of tiny indivisible atoms?

A

NO

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12
Q

Did Ernest Rutherford discover the proton?

A

NO

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13
Q

Was Democritus the first person to propose a scientific and testable theory of the atom?

A

NO

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14
Q

Is Rutherford’s model of the atom described as the plum pudding model?

A

NO

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15
Q

We’re isotopes discovered by Robert Millikan?

A

NO

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16
Q

Be able to determine the atomic number of elements

A

See Mrs. K for help

17
Q

Be able to identify the Element with a given number of protons

A

See Mrs. K for help

18
Q

Be able to calculate the neutrons when given the atomic mass and the # of protons

A

See Mrs. K for help

19
Q

Be able to calculate the number of protons when given the atomic mass and the neutrons

A

See Mrs. K if you need help

20
Q

Be able to identify an element when given the atomic mass and the # of neutrons

A

See Mrs. K for help

21
Q

Be able to determine the COMPLETE SYMBOL of an element

A

See Mrs. K for help

22
Q

Be able to determine the # of protons, # of neutrons, the mass of different elements by looking at a chart.

A

See Mrs. K for help

23
Q

Who discovered the neutron?

A

James Chadwick

24
Q

What are atomic weights measured in?

A

Atomic Mass Units (amu’s)

25
Q

What are atomic masses on the period table?

A

Weighted averages