Download An atom is an indivisible particle. is chemically indivisible. is the

Structure of Matter
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An atom
The atomic number indicates the number of
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is an indivisible particle.
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protons.
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is chemically indivisible.
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electrons and protons together.
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is the smallest known particle.
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neutrons.
The atomic nucleus was discovered
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The mass number
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by Ernest Rutherfound.
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is greater than the atomic number.
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by Democritus.
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indicates the number of neutrons.
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by Galileo Galilei.
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is twice as large as the AN.
The mass of an atom
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The heaviest atom found in nature is
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is mainly located in the nucleus.
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radon (atomic number 86).
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is defined by the electrons.
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plutonium (atomic number 94).
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is defined by the nucleons.
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meitnerium (atomic number 109).
Size atomic nucleus : atomic shell =
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fly : apple
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molecular bonding.
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fly : volleyball
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ionic bonding.
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fly : cathedral
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metal bonding.
In the atomic nucleus there are
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The relative molecular mass of CO2
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protons.
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is 32 units.
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electrons.
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is 36 units.
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neutrons.
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is 44 units.
To the outside atoms are
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NO name for a chemicel bonding is
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1 u equals
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negatively charged.
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1,6710-27 kg.
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electrically neutral.
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61023 particles.
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positively charged.
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appr. the mass of an H-atom.
An electrically charged atom is called
What does an electron look like?
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molecule.
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ball-shaped and bluish
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electric atom.
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depends on state of aggregation
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ion.
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impossible to tell
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