Chemistry, 05.12.2019 18:31 douglasally

The de broglie relation and the wavelength of a particle just as light waves have particle behavior, a moving particle has a wave nature. the faster the particle is moving, the higher its kinetic energy and the shorter its wavelength. the wavelength, λ, of a particle of mass m, and moving at velocity v, is given by the de broglie relation λ=hmv where h=6.626×10−34 j⋅s is planck's constant. this formula applies to all objects, regardless of size, but the de broglie wavelength of macro objects is miniscule compared to their size, so we cannot observe their wave properties. in contrast, the wave properties of subatomic particles can be seen in such experiments as diffraction of electrons by a metal crystal.
part a the mass of an electron is 9.11×10−31 kg. if the de broglie wavelength for an electron in a hydrogen atom is 3.31×10−10 m, how fast is the electron moving relative to the speed of light? the speed of light is 3.00×108 m/s. express your answer numerically as a percent.
part b the mass of a golf ball is 45.9 g . if it leaves the tee with a speed of 63.0 m/s , what is its corresponding wavelength?

Answers: 1

Show answers

Another question on Chemistry

Chemistry, 22.06.2019 03:30

The atomic radius of sodium is 186 pm and of chlorine is 100 pm. the ionic radius for na+ is 102 pm and for cl– is 181 pm. in going from na to cl in period 3, why does the atomic radius decrease while the ionic radius increases? a. the inner electrons in the sodium cation shield its valence electrons more effectively than the inner electrons in the chloride anion do. b. the inner electrons shield the valence electrons more effectively in the chlorine atom than in the chloride anion. c. the outermost electrons in chloride experience a smaller effective nuclear charge than those in the sodium cation do. d. the outermost electrons in chloride experience a larger effective nuclear charge than those in the sodium cation do. e. monatomic ions are bigger than the atoms from which they are formed.

Answers: 2

Answer

Chemistry, 22.06.2019 04:40

Silver tarnishes as silver metal reacts with hydrogen sulfide, h2s, in the air. in this reaction, dark silver sulfide, au2s, covers the surface of silver. when silver is polished, this coating of silver sulfide can be removed from the surface. this makes the silver shiny again. enter the coefficients that balance the tarnishing reaction equation. (type 1 for no coefficient.)

Answers: 2

Answer

Chemistry, 22.06.2019 09:20

What will most likely happen when two bromine atoms bond together?

Answers: 3

Answer

Chemistry, 22.06.2019 18:00

What amount of heat is exchanged when 106.2 grams of substance y goes from a liquid at 35 degrees celsius to a solid at the same temperature? melting point of substance y = 35 degrees c; δhvaporization = 3.67 j/mol; δhfusion = 3.30 j/mol. mwsubstance y = 28.22 g/mol. −12.4 j −3.51 x 102 j 1.24 x 101 j 351 j

Answers: 1

Answer

You know the right answer?

The de broglie relation and the wavelength of a particle just as light waves have particle behavior,...

Questions