Atomic Theory of Matter

All matter is made up of tiny _______________

• energy

• particles (atoms and molecules)

• bits

• antimatter

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All matter is made of _________.

• energy 

• atoms 

• electrons 

• compounds 

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All matter is made of particles

• True

• False

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Which of the following statements about the particle of a gas is true?

• The particles of a gas vibrate and are packed closely together.

• The particles of a gas are far apart and move in all directions.

• The particles of a gas do not move.

What scientist first developed 4 rules for atomic theory, and helped kick start modern chemistry?

• J.J. Thomson

• Ernest Rutherford

• John Dalton

• Democritus

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Who developed this early atomic theory?

All atomic structure was made up of atoms which he believed to be tiny, hard spheres.

• Bohr

• Dalton

• Rutherford

• J.J. Thomson

• Democritus

The Atomic Theory states that

• all things are made of tiny particles called atoms

• all things are made of compounds

• all things are made of mixtures and solutions

• all things are made of physical and chemical changes

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Who developed the atomic theory? (a)  

• Dalton

• Thomson

• Chadwick

• Rutherford

Who was the first scientist to name atoms?

• Aristotle

• Democritus

• JJ Thomson

• Rutherford

What was Dalon's atomic theory about ?

• Matter is made tiny particles called atoms.

• Atoms combine in whole numbers.

• Atoms of an element are identical in mass and properties.

• Different elements have different properties.

• They are divisible into protons. It contains electronic shells.

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