AP Chemistry review

What is the most reactive group of metals in the periodic table?

• Group 1 - Alkali Metals

• Group 2 - Alkaline Earth Metals

• Group 17 - Halogens

• Group 18 - Noble Gases

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What is the charge of an anion?

• Positive

• Negative

• Neutral

• Variable

What is the formula to calculate the energy of a photon?

• E=hv

• E=F*d

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What is the significance of isotopes in atoms?

• They have different numbers of protons.

• They have different numbers of neutrons.

• They have different numbers of electrons.

• They have different atomic numbers.

What is the empirical formula used for?

• To find the molecular weight

• To convert grams to moles

• To determine the number of protons

• To calculate the energy of a photon

Which group contains the noble gases?

• Group 1

• Group 2

• Group 17

• Group 18

What does the term "valence" refer to in chemistry?

• The number of protons in an atom

• The number of neutrons in an atom

• The number of electrons in the outer shell

• The atomic mass of an element

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NGSS.HS-PS1-1

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Which type of bond involves the sharing of valence electrons between nonmetals?

• Metallic Bonds

• Ionic Bonds

• Covalent Bonds

• Network Bonds

What is the general rule for the number of bonds carbon likes to form?

• 2 bonds

• 3 bonds

• 4 bonds

• 5 bonds

What is the hybridization of an atom with sp² hybrid orbitals?

• Linear

• Trigonal Planar

• Tetrahedral

• Octahedral