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2000
Matter and the Structure of Atoms
1


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Questionario a risposta multipla
1- Rutherford's experiment showed:
that Thomson's model was valid
the existence of isotopes
that Thomson's model was not valid
the existence of neutrons
2- Which subatomic particles account for the charge on the nucleus?
protons
neutrons
electrons
protons and neutrons
protons and electrons
3- Consider the following statements. Which one is TRUE?
The atom is indivisible
The atom is physically indivisible and chemically divisible
The atom is physically divisible and chemically indivisible
The atom is divisible into smaller atoms.
4- A compound is
matter composed of one kind of atom
a pure substance
various physical combinations of pure substances
a diatomic molecule
5- Three of these words are very strongly related. Which is not
molecule
ion
chemical bond
compound
6- Two or more different elements that are bonded in a definite amount are called
a mixture
a compound
a colloid
a solution
7- What does the centre of the atom contain?
protons and electrons
protons and neutrons
neutrons and electrons



© Nino Vessella , 1996-.
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