Chemistry Ch. 5.1 Study Guide (Light and Quantized Energy)

Electromagnetic radiation is a kind of ________.

Energy

Electromagnetic radiation behaves like a(n) ________ as it travels through space.

Wave

________ is one type of electromagnetic radiation.

Light

Other examples of electromagnetic radiation include, _________, ___________ and _______________.

Xrays, radio waves and microwaves

The four characteristics of waves are wavelength, amplitude, frequency, and ______________.

speed.

The shortest distance between equivalent points on a continuous wave is called a(n) _________.

Wavelength.

The height of a wave from the origin to a crest or from the origin to a trough is the __________________.

Amplitude

________________ is the number of waves that pass a given point in one second.

Frequency

The SI unit for frequency is the ________________, which is equivalent to one wave per second.

Hertz

A(n) _______________ is the minimum amount of energy that can be lost or gained by an atom.

Quantum

According to Planck's theory, for a given frequency, v, matter can emit or absorb energy only in ________________.

Whole number multiples of hv.

The __________________ is the phenomenon in which electrons are emitted from a metal's surface when light of a certain frequency shine's on it.

photoelectric effect

What is the equation to calculate the energy of a photon?

E photon = hv

A(n) _________________ is NOT a continuous range of colors like the visible spectrum.

atomic emission spectrum

Each _______________ has a unique atomic emission spectrum.

Element

A __________ can be used to identify the presence of certain elements in a compound.

Flame test

The fact that only certain ____________ appear in an element's atomic emission spectrum indicates that only certain frequencies of light are emitted.

colors

Atomic emission spectra CANNOT be explained by the ______________ of light.

wave model

The neon atoms in a neon sign emit their characteristic color of light as they ______________ energy.

Release

When an atom emits light, _______________having specific energies are being emitted.

Photons

Amplitude

Number 2

Wavelength

Number 1

Crest

Number 3

Trough

Number 4