Unit 1 Flashcards

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1
Q

Which scientist is responsible for the Law of Conservation of Mass?

A

Lavoisier

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2
Q

Which scientist is responsible for the Law of Definite Proportions?

A

Proust

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3
Q

Who discovered the first atoms, “atomos”

A

Democritus

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4
Q

The scientist responsible for the Law of Multiple Proportions?

A

Dalton

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5
Q

Who discovered the Electron?

A

J.J. Thomson

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6
Q

The scientist behind the oil drop experiment

A

Millikan

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7
Q

Who discovered neutrons?

A

James Chadwick

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8
Q

Who created/propositioned the first model of the atom?

A

Niels Bohr

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9
Q

What is the law of conservation of mass?

A

Mass cannot be created or destroyed.

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10
Q

What is the Law of Constant Composition(definite proportions)?

A

pure compounds always have the same % of a given element

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11
Q

What experiment lead to the theory of the nucleus?

A

Gold foil experiment

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12
Q

What makes up the atomic number?

A

The number of protons

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13
Q

What is the electron cloud/domain?

A

The potential, or probable, position of an electron in an atom

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14
Q

What are the familiar orbitals?

A

S, P, D, and F

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15
Q

What shape are S orbitals?

A

Spherical

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16
Q

What shape are P orbitals?

A

Dumbbell or Figure Eight

17
Q

What does the Principal(n) correspond to on the periodic table?

A

The Rows

18
Q

What do sublevels of an orbital correspond to on the periodic table?

A

The columns