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Chapter 5: Electrons in Atoms
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18
Chemistry
10th Grade
10/24/2009

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Term
What can all waves be described by?
Definition

Wavelength

Frequency

Amplitude

Speed

Term
Light is considered what type of wave?
Definition
Electromagnetic Wave
Term
What is the speed of all electromagnetic waves in a vacuum?
Definition
3.00 X 108 m/s
Term

Speed of light=

Wavelength=

Frequency=

 

 

(just symbols, not how to get them)

Definition

1)C

2)λ

3)V

Term

Name the equations for the following:

 

1)Wavelength

2)Frequency

Definition

1) C/V =λ

2) C/λ= V

Term
All electromagnetic waves can fit into what 2 categories?
Definition
Waves and Particles
Term
What are Photons?
Definition
Particles of light
Term
How is matter related to energy?
Definition
Matter emitts and absorbs it.
Term
What is the equation for finding the energy of a photon?
Definition
E=hv (Energy is equal to Planck's Constant X Frequency)
Term
What is the atomic emission of an element?
Definition
Spectrum that consists of a series of fine lines of individual colors.
Term
Bohr refined Rutherford's idea about the electron how?
Definition
Saying the electrons were in orbits
Term

What is the max number of shells an electron can contain?

What are the amounts of electrons each shell can hold?

Definition

1) 4

2) 2, 8, 18, 32

 

 

 

Term
What are the sublevels, and how many principal energy levels are there?
Definition

A) 1. S

     2. P

      3. D

      4. F

 

B) 4

 

Term
How many orbitals are in each sublevel? How many electrons can be in each sublevel?
Definition

1) S= 1 orbital and 2 total electrons

2) P= 3 orbitals and 6 total electrons

3) D= 5 orbitals and 10 total electrons

4) F= 7 orbitals and 14 total electrons

Term
What does the Aufbau Principle state?
Definition
Each electron occupies the lowest orbital available
Term
According to the Pauli Exclusion Principle, how many electrons may occupy a single atomic orbital?
Definition
2
Term
Explain Hund's Rule.
Definition
There must be electrons in all sublevels before adding more than 1
Term
What is a valence electron?
Definition
electrons in the outer most orbital of an atom, and is associated with bonding
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