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Flashcards in Ch 9 Deck (34)
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1

The number of waves produced per unit time

Frequency

2

What 2 things are inversely proportional

Wavelength and frequency

3

Tells how fast waves travel through space

Speed

4

Travels through space as electromagnetic radiation

Energy

5

Radiation that takes many forms, such as sunlight, microwaves, radio waves, etc.

Electromagnetic radiation

6

All electromagnetic waves travel at the speed of light and differ from each other in their frequency and wavelength

Vacuum

7

The classification of electromagnetic waves according to their frequency is called

Electromagnetic spectrum

8

Scientist also have much evident enough that light beams act as a stream of tiny particles called

Photons

9

The distance between any 2 successive crests of troughs

Wavelength

10

When atoms are energized, they often reemit the energy as _____
Give an example

Light
Neon lights

11

The absorption and emission of light is due to what

What happens as a result of this

Due to the interaction of light with the electrons in the atom


As a result, atoms of different elements exhibit a unique color and wavelength of light

12

A danish physicist, studied the hydrogen atom extremely, an developed a model for the atom that was able to explain the line spectrum

Neil's Bohr

13

Atoms consist of electrons orbiting the nucleus at different distances from the nucleus, called

Energy levels

14

A model of the atom consisted of electrons orbiting the nucleus at different distance from the nucleus, called energy levels. In this model, the electron could only occupy particular energy levels, and could "jump" to higher level by absorbing energy

Bohr's model

15

What is the lowest energy level

Ground state

16

What is the higher energy levels called

Excited state

17

When electrons absorb energy though heating or electricity, they move to (higher/lower) energy levels and the levels become excited

Higher

18

What happens when excited electrons return to the ground state

Energy is emitted as a photon of light is released

19

How is the color of light determined

Its determined by the difference in energy

20

What is produced by many of transitions between excited and ground states

Atomic spectrum

21

Who created a mathematical model that showed electrons as both particles and waves

Erwin Shrodinger

22

What did Erwin Shrodinger create

He created the quantum mechanical model

23

The quantum mechanical model predicted electrons to be located in a probability region called _____

Orbitals

24

What is defined as a region around the nucleus where there is a high probability of finding an electron

An orbital

25

Each principal energy level is subdivided into what

Sub levels

26

The sub levels are designated by the letters __, __, __, & __

S, p, f & d

27

What is the number of orbitals within the sub levels vary with there type
S sub levels=? Orbitals
P sub level=? Orbitals
D sub level =? Orbitals
F sub level =? Orbitals

S=1
P=3
D=5
F=7

28

What is the max number of electrons an orbital can hold

2

29

Similarities of behavior in the periodic table are due to the similarities in the electron arrangement of the atoms. What is the arrangement called

Electron configuration

30

Each orbital can be occupied by no more than 2 electrons, each with the (opposite/same) spin

Opposite

31

The electrons occupy the orbital from the lowest energy level to the highest level. The energy of the orbitals on any level are in the following order
A. S

A. S

32

What is the horizontal rows in the periodic table called

Periods

33

The vertical columns in the periodic table are called ____ or ____

Groups or families

34

What is the outermost filled energy level called

Valence electrons