HPS- BM #2 Study Guide Part 1

Which scientist first proposed the nuclear model of the atom through the gold foil experiment?

• J.J. Thomson

• Ernest Rutherford

• Niels Bohr

• John Dalton

What is the definition of density?

• The resistance of a fluid to flow

• The measure of how well a solute dissolves

• The mass per unit volume of a material

• The temperature at which a solid becomes a liquid

In a supersaturated solution, what occurs?

• The solution can dissolve more solute

• The solution is at maximum capacity

• The solution contains less solute than possible

• The solution contains more solute than it should be able to hold

Which state of matter has particles with the highest kinetic energy?

• Solid

• Liquid

• Gas

• Plasma

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What type of force holds an atom together?

• Repulsive force between electrons

• Attractive force between the nucleus and electron cloud

• Repulsive force between protons

• Attractive force between neutrons

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How many valence electrons do elements in Group 17 (Halogens) have?

• 8

• 1

• 7

• 2

What is the process called when ionic compounds separate into ions?

• Sublimation

• Vaporization

• Dissociation

• Deposition

Which type of solution would be considered an alloy?

• Gas in liquid

• Liquid in liquid

• Metal in metal

• Gas in gas

What determines an element's position on the periodic table?

• Mass number

• Atomic number

• Number of neutrons

• Number of electrons

What occurs during a chemical change?

• Only the physical properties are altered

• The matter is destroyed

• A new substance is formed

• The mass changes

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