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All matter is made up of very small ______________ and/or combinations of _______________.
less energy
Democritus
Scanning Tunneling Microscope
John Dalton
Matter
nucleus
atoms / atoms
Zero
One philosopher named ____________________________ (460-370 BC) challenged the popular idea of matter and stated that all matter is made up of small solid objects, he called atomos, that cannot be divided, created, or destroyed.
less energy
Democritus
Scanning Tunneling Microscope
John Dalton
Matter
nucleus
atoms / atoms
Zero
In the late 1700's, English schoolteacher and scientist ______________________, was able to test the atomos theory of ancient Greece, and found some basic evidence to support the atomic theory.
less energy
Democritus
Scanning Tunneling Microscope
John Dalton
Matter
nucleus
atoms / atoms
Zero
Electrons closer to the nucleus have ______________ than electrons farther away from the nucleus.
less energy
Democritus
Scanning Tunneling Microscope
John Dalton
Matter
nucleus
atoms / atoms
Zero
Which of the following would express the charge of a single neutron?
less energy
Democritus
Scanning Tunneling Microscope
John Dalton
Matter
nucleus
atoms / atoms
Zero
The____________________ is the region at the center of an atom that contains most of the mass of the atom.
less energy
Democritus
Scanning Tunneling Microscope
John Dalton
Matter
nucleus
atoms / atoms
Zero
In 1981, the invention of a high powered microscope called a(n) ___________________ enabled scientists to see the exterior of individual atoms for the first time.
less energy
Democritus
Scanning Tunneling Microscope
John Dalton
Matter
nucleus
atoms / atoms
Zero
___________________ is physical substance, which takes up space and has mass.
less energy
Democritus
Scanning Tunneling Microscope
John Dalton
Matter
nucleus
atoms / atoms
Zero
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