AP Chemistry Sem 1 Review

Which of the following is a general characteristic of a nonmetal?

• Low Density
• Nonconductor of heat
• Brittle
• All of the above

Which one of the following elements has the greatest ionization energy?

• Al
• Cl
• Br
• S

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which of the following is true of an element in an excited state?

• It has emitted a photon and its energy has decreased
• It has emitted a photon and its energy has increased
• It has absorbed a photon and its energy has increased
• It has absorbed a neutron and its energy has increased

Tags

NGSS.HS-PS4-3

How many electrons can occupy the n=4 shell (energy level)?

• 8
• 10
• 18
• 32

How many electrons occupy the 5f subshell?

• 2
• 6
• 10
• 14

⁶³Cu is 69% of the naturally occurring isotope of Cu.  If only one other isotope is present for natural copper, what is it?

• ⁵⁹Cu
• ⁶⁵Cu
• ⁶¹Cu
• ⁶²Cu

Consider an atom with the electron configuration 1s²2s²2p⁶3s²3p⁶.  Which of the following is an accurate statement concerning this atom?

• This atom would probably be very reactive
• This element is diamagnetic
• This atom is in an excited state
• The atomic number Z = 11

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which one of the following atoms is the largest?

• Rb
• Na
• Ca
• Te

Which principle states that only two electrons can occupy an orbital?

• Pauli Exclusion Principle
• Hund's Rule
• Heisenberg's Uncertainty Principle
• Newton's Principle

Which one of these molecules has a trigonal pyramidal molecular geometry?

• SO₃
• NF₃
• IF₃
• BF₃