Chemistry Final Exam Review

Elements in the same group/family (column) on the periodic table have __________.

• the same number of valence electrons

• the same number of electrons

• a full outer shell of electrons

• two electrons they will loose when forming ions

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NGSS.HS-PS1-1

NGSS.HS-PS1-2

How many valence electrons does sodium (Na) have?

• 1

• 2

• 3

• 4

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NGSS.HS-PS1-1

Which element has an atomic number of 8?

• Oxygen (O)

• Francium (Fr)

• Lithium (Li)

• Beryllium (Be)

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NGSS.HS-PS1-1

Which element will form an ion with a -1 charge?

• Fluorine (F)

• Hydrogen (H)

• Helium (He)

• Nitrogen (N)

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NGSS.HS-PS1-1

Which of the following is a metal?

• Aluminum (Al)

• Chlorine (Cl)

• Fluorine (F)

• Argon (Ar)

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NGSS.HS-PS1-1

Which is a characteristic of a metal?

• malleable

• low boiling points

• dull in appearance

• break easily

Which is a property of a nonmetal?

• brittle

• ductile

• malleable

• conductive

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NGSS.HS-PS1-1

This is the weighted average of all of the isotopes of an element.

• Average Atomic Mass

• Atomic Number

• Weight

• Isotope Number

The atomic number is equal to the number of________.

• protons

• electrons

• neutrons

• energy levels

This substance cannot be broken down further by chemical means.

• Element

• Compound

• Mixture

• Matter