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WorksheetsAtom Models
Total questions: 10
Worksheet time: 4mins
Who discovered electrons?
J.J. Thomson
Ernst Rutherford
James Chadwick
Niels Bohr
Who discovered neutrons?
Ernst Rutherford
James Chadwick
J.J. Thomson
Niels Bohr
Which word would closely resemble the term 'atomos'
indivisible
inedible
independent
incredible
The atomic mass is dependent on which two subatomic particles?
Protons and electrons
Neutrons and electrons
Protons and neutrons
Electrons and the nucleus
Electrons and protons are always equal making the atom electrically ___________.
charged
negative
positive
neutral
Who discovered that the atom had an small, dense, positively charged center?
John Dalton
J.J Thomson
Eugen Goldsteinin
Ernst Rutherford
Which scientist discovered that the atom has parts - which means it can be divided?
Democritus
Dalton
Thomson
Goldsteinin
In the atomic model nicknamed the "plum pudding" model, what do the nuts/ currants/ dry fruits represent?
the nucleus
the atom
the electrons
the positive sphere
For which of the following reasons did Rutherford select alpha particles for his experiment?
they were heavy and had high energy.
they displace electrons
they could be easily detected
they could be easily collimated
they excited electrons to higher energy level
Identify the scientist.
Ernst Rutherford
Democritus
Niels Bohr
John Dalton
