Chemistry Test Ch. 5

Give examples of electromagnetic radiation:

Gamma, microwave, x-rays, ultra violet, radiowaves, visible

Wavelength is measured by the distance between _____ or ____.

crests; troughs

Wavelength is usually measured in ____,_____, or ______

m; cm; nm

What is the greek letter for wavelength?

lambda

Frequency is the __________

number of waves that pass a given point per second

Frequency is measures in ___

heartz

Heartz stands for ____ ___ _____.

waves per second

What is the greek letter for frequency?

nu

The relationship between wavelength and frequency is _______.

inverse

Our eyes can only see _____ _____.

visible light

The wavelength we can see ranges from approximately ______ nm to ______ nm

400; 700

What color is the lowest frequency of light?

red

What color is the highest frequency of light?

purple

Infrared is abbr. as _____ and is also known as _____.

IR; heat

Ultra violet is abbr. as ______ and _____ _____ ____

UV; damages living cells

Sunlight contains______, _______, and _______ ______ radiation.

UV; Infrared; visible light

Ionizing radiation is _______ dangerous to living organisms compared to other types of radiation.

more

Ionizing radiation including ____ and _____ have much _____ ____ .

gamma; x-rays; higher energy

Phontons are a _______ _____ carrying a ______ of ______.

massless particle; quanta; light

Radiation is emitted and absorbed only in ______ ______ ______ of ______.

whole number multiples; photons

Photons are “_______” that can’t be ______

packets; divided

Planck (____) determined that _____ can ___ or ____ energy only in _____ specific amounts called ______.

1800; matter; gain; lose; small; quanta

Energy and frequency are _____ proportional

directly

Einstein proposed that Planck’s equation worked for ____ ________ _______. Not just _____ _____.

all electromagnetic radiation; visible light

You can think of light as ______ or ______ _____

waves; photon particles

A rainbow is an example of a ______ spectrum

continuos

A _____ ______ spectrum is when light is ______ into distinct ______.

bright line; separated; lines

Every electron has a distinct _______.

spectra

______ are produced as ______ electrons fall back to the ground state n

spectra; excited

Niels Bohr (____)

1913

_______ was a ______ physicist; student of _______

Bohr; Danish; Rutherford

_____ proposed that electrons were confined to ____ around the _____.

Bohr; orbits; nucleus

Bohr proposed that orbits were different ______ _____.

energy levels

When electrons move away from the nucleus, they ______ energy

absorb

When they move closer to the nucleus, they _____ energy. The amount of energy change is called a _______

emit; quantum

When electrons are in the ground state they have the ______ energy and are _____

lowest; stable

When electrons are in the excited state they have the ______ energy and are______

highest; unstable

An electron in its _____ _____ absorbs ___ or more ____ of energy and becomes _____.

Excited state means _____ ____ from the _____.

further away; nucleus

When the electron falls back to the ground state, the energy that it absorbed will be _____ ___.

given off

After a electron falls back to the ground state, the energy given off will have the wavelengths associated with ______ _____.

visible light

In fireworks, energy comes from the _____.

fire

In glow-in-the-dark items, energy comes from ______.

light

In neon lights, energy comes from _______.

electricity

Bohr ______ predicted the _____ of the _____ in _______ _____ _______.

accurately; frequencies; lines, hydrogens’s emission spectrum

______ + ______ = the speed of light

wavelength; frequency

The electromagnetic spectrum is the arrangement of all ________ _______ according to _______ or _______.

electromagnetic radiation; wavelength; frequency

List the forms of electromagnetic radiation in order of increasing frequency.

Long radio waves, AM, FM, microwave, infrared, visible light, UV, x-rays, gamma rays

Which has a higher energy/frequency wi-Fi or Bluetooth?

Wi-Fi, it connects much larger devices

S-orbitals can be situated ____ way, which means there is _____ orbitals in the s-subshell

1;1

P-orbitals can be situated ____ ways which means there are ____ orbitals in the p-subshell.

3;3

D-orbitals can be situated ____ ways which means there are ____ orbitals in the d-subshell.

5;5

F-orbitals can be situated ____ ways which means there are ____ orbitals in the f-subshell

7;7

S-orbitals start on the _____ energy level

1st

P-orbitals start on the _____ energy level

2nd

D-orbitals start on the ______ energy level

3rd

F-orbitals start on the ______ energy level

4th

How do you find the maximum number number of electrons that can fit in a subshell?

#of orbitals x 2

How do you find the # of orbitals in an energy level?

n²

How do you find the # of electrons in the energy level?

2n²

Orbitals can hold ____ electrons

2

Orbitals make up ______

subshells

The magnetic quantum number tells how many ways a _____ of a given _______ can be arranged in space on each _____ _____

orbital; subshell; energy level