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The structure of an atom (What is atom? (Now (electrical charge…
The structure of an atom
What is atom?
Now
Differing numbers of....
...too are made up of even smaller particles
element is identified by
electronically neutral
electrical charge
electricityy
become attracted
form molecules
The origin of the universe
Ancient times
Greeks
possible
Smallest
Dalton
First hypothesised
a century later
The first subatomic particles
quantum mechanies
not immediatelly (не сразу)