Physical Science Semester 1 Exam Review

Which element has the smallest atoms according to its atomic radius?

• O

• C

• Se

• At

Which element has the largest atoms according to its atomic radius?

• Sr

• Cs

• Rf

• Ti

In the case of an ionic bond, the resulting compound should...

• combine perfectly in a 1 to 1 ratio.

• be neutral.

• need more positive ions.

• need more negative ions.

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How many valence electrons would GERMANIUM have?

• 2

• 3

• 4

• 5

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What was uncertain in the "Uncertainty Principle"?

• the mass of an atom

• how many electrons were in an atom

• the exact speed or location of an electron in an atom

• the ratio of protons to electrons in an atom

Which scientist was responsible for the "Uncertainty Principle"?

• Werner Heisenberg

• Albert Einstein

• Niel Bohr

• Sheldon Cooper

The most reactive non-metal on the periodic table is...

• Fluorine

• Helium

• Radon

• Francium

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The most reactive metal on the periodic table is...

• Lithium

• Aluminum

• Radium

• Francium

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Non-Metals become more reactive...

• as you move down on the periodic table.

• as you get closer to helium.

• as you get closer to fluorine, not counting the last column.

• as you move left within the non-metals.

Metals become more reactive as you...

• move up on the periodic table.

• move down on the periodic table.

• move diagonally up and left on the periodic table.

• move diagonally down and right on the periodic table.

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