Chapter 5- Chapter 6 (MC Graw Hill: Chemistry Matter and Change)

Chapters 5- 6

Electro Magnetic Radiatiom

a form of energy that exhibits wavelike behavior as it travels through space.

Characteristics of Waves

Wavelength, Frequency, Amplitude

Wavelength(λ)

the shortest distance between equivalent point on a continuous wave.Measured by crest to crest.

Wavelength are expressed in?

Meters, centimeters, and, nanometers

Frequency(v)

Is the number of waves that pass a given point per second.

Frequency is expressed in?

Hz, 1/s, s^-1

Amplitude

is the wave’s height from the origin to the crest .

Electromagnetic Wave Relationship

c=λv

Speed of light

3.00×10⁸

Wavelength and Frequency are(relationship)?

inversely related. Which means as one increases the other decreases

Visible Light

White Light

EM( Electro Magnetic Spectrum)

.

Temperature of an object

is a measure of average kinetic energy of its particles

Max Planck

Matter can gain or lose energy in small specific amounts called quanta

Quantum

is the minimum amount of energy that can be gained or lost by an atom

Energy of a Quantum

E = hV

(E = energy, h = Planck's constant, V = frequency)

Planck’s Constant

6.626 × 10^-34 J*s

Energy sign

J

Velocity

meters * second m/s

Photoelectric effect

electrons ,called photoelectrons, are emitted from from a metel’s surface when light of a certain frequency or higher shines on the surface.

Einstein dual light nature

a beam of light has wavelike and particle like properties.

Photon

is a massless particle that carries a quantum energy.

Energy of a photon

E = hv

E = energy of the photonh = Planck's constant (6.626 × 10⁻³⁴ J·s)v = frequency of the photon