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WorksheetsP1.14 Atomic history and structure
Total questions: 12
Worksheet time: 3hrs 0mins
Democritus called the tiniest particles of matter "atomos", which is Greek for _____
empty space
indivisible
very small
Which philosopher stated that matter was made of four elements: earth, wind, water and fire?
Aristotle
Socrates
Plato
In 1808, who was the Quaker teacher that challenged Aristotelian theory?
Rosalind Franklin
Albert Einstein
John Dalton
Rutherford referred to the center of the atom, where the mass was concentrated, as _____
the center
the nucleus
the middle
The current model of the atom, where electrons exist within a range of possible locations, is called _____
the quantum mechanical model
the billiard ball model
the plum pudding model
the planetary model
All matter is made of ______.
atoms
fire
water
The positively charged particles in the nucleus of an atom are
protons
neutrons
electrons
How many protons does this carbon atom have?
6
12
18
Particles in an atom that are neutral and have no charge are
protons
neutrons
electrons
How many protons does this atom have?
5
10.811
16
If the number of protons equal the number of _____, the atom will have no charge
atoms
neutrons
electrons
Circling the atom, these parts of an atom hold a negative charge.
Neutron
Electron
Proton
