WorksheetsElectrons+EMR
Total questions: 33
Worksheet time: 53mins
Valence electrons are located...
inside the nucleus
in outer space
on the outermost electron shell in an atom
on the electron shell closest to the nucleus.
Which model describes electrons as orbiting around a central nucleus?
Bohr
Rutherford
Quantum Mechanical
J.J. Thomson
What patterns are made when excited electrons emit light of certain wavelengths?
electromagnetic spectra
atomic emission spectra
spectroscopes
prisms
Which is a particle of electromagnetic radiation with no mass that carries a quantum of energy?
electron
neutron
microwave
photon
An atom that has gained energy beyond normal is said to be in ...
an excited state
an energized state
a naturalized state
ground state
A wave with a high frequency will have a ______ wavelength and _____ energy
high, low
high, high
low, high
low, low
The relationship between wavelength & frequency is....
Directly Proportional
Indirectly Proportional
Not Proportional
The relationship between energy & frequency is....
Directly Proportional
Indirectly Proportional
Not Proportional
The _______________ determines the color of visible light.
Wavelength
Speed of Light
Amplitude
Planck's Constant
Which section of the spectrum is the ONLY one humans can see?
X-rays
Visible Light
Gamma Rays
Ultraviolet Rays
Which has the LONGEST wavelength?
Gamma Rays
Radar Waves
Visible Light
Infrared rays
Which electromagnetic waves have the highest frequencies?
microwaves
visible light
gamma rays
radio waves
Which electromagnetic waves are used in ovens and cell phone communications?
Infrared rays
ultraviolet rays
microwaves
visible light
Which of the following has wavelengths longer than microwaves?
Infrared waves
Radio waves
Visible light
Gamma Rays
Which electromagnetic waves allow us to diagnose & treat cancer?
Gamma rays
X-rays
Ultraviolet rays
Infrared rays
Which of the following has frequencies higher than ultraviolet rays?
visible light
infrared rays
x-rays
microwaves
Yellow light emitted by a sodium vapor lamp has a wavelength of 589 nm. What is the frequency of this radiation in Hz?
(Use x10^# for sci-notation)
(a)
An FM radio station broadcasts EMR at a frequency of 1.034x108 Hz. Calculate the wavelength of this radiation in meters, m?
(a)
What is the energy of a 2.55 x 1012 Hz wave in Joules, J?
(Use x10^# for sci-notation)
(a)
A laser emits light with 3.11x10-19 J of energy. What is the frequency of radiation from this laser in Hz?
(Use x10^# for sci-notation)
(a)
What is the wavelength in meters, m, of a 1.528x10-13 J wave?
(Use x10^# for sci-notation)
(a)
