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15 questions
The term "atom" comes from the Greek word for
indivisible
uncuttable
indestructible
atomos
Atoms were created after the Big Bang 13.7 billion years ago.
True
False
Discovered the nucleus in 1911
J.J Thomson
John Dalton
Erwin Schrodinger
Ernest Rutherford
The nucleus is held together by the...
Strong Force
Weak force
Gravity force
Electromagnetic force
positively charged particles found within atomic nuclei.
protons
neutrons
electrons
quarks
The number of protons in an atom is unique to each element
True
False
Is referred to as the atomic number of an element.
Number of protons
Number of electrons
Number of neutrons
Quarks are held together by other subatomic particles called...
Gluons
Photons
Higgs
Muons
Developed the theory that protons and neutrons are maded up of smaller particles called "quarks"
Murray Gell-Mann
George Zweig
Werner Heisenberg
Niels Bohr
Protons and neutrons are made up of "up" and "down" quarks.
True
False
Scanning probe microscopes were developed in...
1970s
1980s
1990s
An atomic force microscope has a very fine tip, sometimes only an atom wide.
True
False
Microscope in which the tip senses changes in the magnetic structure.
Atomic force microscope(AFM)
Scanning tunneling microscope(STM)
Magnetic force microscope(MFM)
Electron microscope
The outer part of an atom
Nucleus
Crust
Electron
Neutron
The mass of a proton is different to that of a neutron
True
False
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