That's my guy
Which of the following was one of Dalton's ideas? a: All substances are made of atoms B: Atoms can be divided C: Atoms can be destroyed d: some substances are made of atoms
A: All substances are made of atoms
The number of protons in an atom of an element is its
atomic number
The number of wavelengths that pass a given point per second
Frequency
the sun uses this type of nuclear reaction to produce energy
fusion
How fast a wave is moving in a certain period of time.
What is wave speed
What structure did Rutherford discover was in an atom after his gold foil experiment?
A nucleus
The positively charged particle
A proton
The matter that mechanical waves travel through is known as ____________.
Medium
what is the one by-product of a fusion reaction
Helium
This is the maximum distance the particles of a wave vibrate from resting position
What is amplitude
What particle did J.J. Thomson discover?
electron
The total volume of an atom is localized in what part of the atom?
nucleus
The amplitude is measured by the distance between ________ and the ________.
rest position to the crest/trough
It occurs when the repelling electrical forces within a nucleus overpower the attracting nuclear strong forces.
What is Nuclear Fission?
This is the bending of a wave as it passes between two substances
What is refraction
The plums in Thomson's plum-pudding model of the atom represent:
electrons
In an atom, which has the least mass? A: nucleus B: proton C: neutron D: electron
electron
A compressional wave is also known as a _________
longitudinal wave
Nuclear deformation leads to this when repelling electrical forces dominate over attracting nuclear forces.
What is fission?
This is the word we use to measure frequency
What is hertz
What did Bohr, Democritus, Thomson, Dalton, and Rutherford all have in common? A: They each identified the electromagnetic force of atoms B: They each identified new electron clouds C: They each developed ideas about atoms D: They each conducted experiments with ions
C: They each developed ideas about atoms
Describe the difference between atomic number and mass number *Multiple sentence answer*
The atomic number is the number of proton in an atom. The Mass number is the sum of the number of protons and neutrons in an atom of a particular isotope
The distance between two like points in a wave
Wavelength
they cannot be separated by a chemical reaction. They must be separated by physical means.
What are uranium-235 and uranium 238?
If you increase the wavelength, what happens to the frequency?
What is decreases