Atomic Theory Flashcards

1
Q

Atom Theory, Billiard Ball

A

Dalton

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2
Q

Electrons, Plum Pudding Model, Cathode Ray Tube

A

Thompson

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3
Q

Nucleus, Gold Foil Experiment

A

Rutherford

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4
Q

Energy Levels

A

Bohr

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5
Q

Neutrons

A

Chadwick

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6
Q

Matter= Building blocks called atomos

A

Democratis

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7
Q

In Nucleus, Positive, 1 amu

A

Protons

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8
Q

In Nucleus, Neutral Charge, 1 amu

A

Neutrons

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9
Q

Outside of Nucleus(electron cloud), Negative, No mass

A

Electrons

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10
Q

Identifies the element, equals #of protons, equals # of electrons

A

Atomic Number

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11
Q

The # of protons + neutrons, whole number

A

Mass Number

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12
Q

Atom with same number of protons(same element), but a different number of neutrons

A

Isotope

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13
Q

Notation that includes element number, mass number, atomic number, and charge

A

Isotopic Notation

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14
Q

Notation that includes element name and mass number

A

Mass Notation

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15
Q

Visible light spectrum from low frequency to high frequency

A

ROY. G. BIV.
Red < Orange < Yellow < Green < Blue < Indigo < Violet

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16
Q

What defines an element?

A

Protons

17
Q

What does atomic # represent?

A

Protons

18
Q

What does mass # represent?

A

Protons

19
Q

Which mass is a whole number?

A

Mass #

20
Q

λ: Length of the wave (distance) that’s measured in meters, feet, inches

A

Wavelength

21
Q

f: How often the wave passes a point (times a second) that’s measured in hertz, 1/s, per second

A

Frequency

22
Q

E: How powerful the light is (joules, J) and the higher the frequency, the higher the energy

A

Energy

23
Q

2:8:8 Energy Level Rule is for what?

A

Bohr Model

24
Q
  • Simplified bohr models
  • Dots represent valence electrons
A

E-Dots

25
Q

Positive, they are lost electrons, life is more + when you get rid of some -‘s

A

Cations

26
Q

Negative, they are gained electrons

A

Anions

27
Q

A charged atom caused by the loss or gain of electrons

A

Ions

28
Q

Step 1. Change percentages to decimals
Step 2. Multiply mass by decimal
Step 3. Add the values
Step 4. Check the periodic table

A

Average Atomic Mass