Random
Bohr's Model of Hydrogen Atom
Electromagnetic Spectrum
Equations
People
100
What is the lowest energy state of an atom called?
What is the highest energy state of an atom called?
What is ground state?
What is excited state?
100
True or False: Bohr's model led scientist to study the Quantum Model?
True
100
What color on the visible spectrum has the longest wavelength and lowest frequency?
What is Red?
100
What equation is used to find the speed of light?
What does each symbol represent?
What is C= λv?
C= constant speed of light
λ = wavelength
v = frequency
100
Who's model is considered to be incomplete because it did not describe how the electrons are distributed in space surrounding the nucleus?
Who is Rutherford?
200
What is a quantum?
What is the minimum quantity of that can be lost or gained by an atom?
200
In Bohr's model of the Hydrogen Atom, at what location does the energy of the electron increase?
What is the energy of the electron is higher when it is in orbits that are successively farther from the nucleus?
200
Which part of the electromagnetic spectrum has high enough energy to cause damage to eyes, and skin and sometimes even cancer?
What are Ultraviolet Rays?
200
Calculate the wavelength of light that has a frequency of 1.5 x 1015 Hz.
What is λ = 2.0 x 10-7 m?
200
Who was a pioneer in the study of electromagnetic radiation? First & last name.
Hint: (Hz)
Who is Heinrich Hertz?
300
What does the photoelectric effect refer to?
What is the photoelectric effect refers to the emission of electrons from a metal when a light shines on metal?
300
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What is Emission?
300
Define electromagnetic spectrum and electromagnetic radiation.
What is electromagnetic spectrum is the range of all the frequencies or wavelengths of electromagnetic radiation?
What is electromagnetic radiation is a form of energy in which electric, magnetic fields are mutually perpendicular to each other, and these two electric, and magnetic fields are perpendicular to the direction of wave propagation?
300
What is the constant # in the equation that is used to find the amount of energy?
EXACT NUMBER
# = 6.262 *10^-34 (Plank's Constant)
300
What was the name of the German physicist who proposed the idea that a hot object does not emit electromagnetic energy continuously?
Hint: (6.626*10^-34)
Who was Max Planck?
400
What is meant by dual wave- particle nature?
The property of particles behaving as waves and the property of waves behaving as particles as well as waves.
400
According to the Bohr model of the hydrogen atom, how is hydrogen's emission spectrum produced?
What is when an electron falls from a higher to a lower orbit (energy level) energy is given off (orbit). The different orbits produce fixed lines in the emission spectrum of hydrogen?
400
Which electromagnetic wave can cause cancer?
Which electromagnetic wave can detect a tumor?
Which electromagnetic wave can cure cancer?
What are ultraviolet waves, x-rays, and gamma rays?
400
What is the relationship between the frequency & wavelength, if the amount of energy continues to increase?
What is the greater the energy, the larger the frequency and the shorter the wavelength?
400
Who explained the photoelectric effect by proposing that electromagnetic radiation is absorbed by matter only in whole numbers of photons?
Who is Albert Einstein?
500
Which theory of light, the wave or particle theory, best explains the following phenomena?
a. the interference of light
b. the photoelectric effect
c. the emission of electromagnetic radiation by an excited atom
What is wave theory?
What is particle theory?
What is particle theory?
500
What were two problems with Bohr's model of the hydrogen atom?
What is Bohr's approach did not explain the spectra of atoms with more than one electron. Nor did it explain the chemical behavior of atoms.
500
What are the various types of electromagnetic radiation on the the electromagnetic spectrum.
lowest to greatest
Hint: (7)
What is Radio waves, Micro Waves, Infrared radiation, Visible light, Ultraviolet, X-rays, Gamma Rays?
500
What equation is used to find the amount of energy in joules?
What does each variable stand for?
What is (E= hν)?
E = energy (J)
h = 6.262 * 10^-34 (J*S)
v = frequency (1/s)
500
Who proposed a model of the hydrogen atom that linked the atom’s electron with photon emission?
Who is Neils Bohr?