Atomic theory

"Everything is composed of atoms" was stated by:

• Democritis
• Dalton
• Moseley
• Einstein

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John Dalton stated:

• elements are made of atoms
• atoms of a given element are identical
• atoms cannot be subdivided, created, nor destroyed
• all of the above

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The scientist responsible for "discovering" the nucleus is:

• Bohr
• Rutherford
• Schroedinger
• Einstein

The nucleus of an atom can be described as:

• spacious and negatively charged
• dense and positively charged
• spacious and positively charged
• dense and negatively charged

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NGSS.MS-PS1-1

How did Rutherford discover the proton?

• Cathode tube ray experiment
• Gold Foil Experiment
• Planetary Model
• Plum Pudding Model

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The word "atom" comes from a Greek word that means

• Invisible
• Indivisible
• Undivided

Electrons can be found in

• The protons
• The nucleus
• Electron Clouds

JJ Thomson discovered what subatomic particle

• nucleus

• neutron

• proton

• electron

First person to propose the concept of an atom

• Rutherford

• Democritus

• Dalton

• Bohr

Who proposed the theory that atoms orbit the nucleus in specific orbits.

• Bohr

• Democritus

• Rutherford

• Chadwick