AP Chemistry Periodicity

The lines in the emission spectrum of hydrogen result from

•  electrons given off by hydrogen as it cools
• energy given off (visible light) when an e- moves from high to a low energy state
• protons given off when hydrogen burns
• electrons given off by hydrogen when it burns

Tags

NGSS.HS-PS1-2

NGSS.HS-PS4-1

NGSS.HS-PS4-3

All of the orbitals in a given electron shell (energy level) have the same value of the __________ quantum number

• spin
• azimuthal
• psi 
• principal

Atomic radius generally increases as we move

•  down a group and from right to left across a period
• up a group and from right to left across a period
• down a group and from left to right across a period
• up a group and from left to right across a period

Tags

NGSS.HS-PS1-1

Which one of the following has the smallest radius?

• P
• NA
• Cl
• F

Tags

NGSS.HS-PS1-1

Which one of the following atoms has the largest radius?

• Ba
• S
• F
• N

Tags

NGSS.HS-PS1-1

The electron configuration of the atom that is expected to have the lowest first ionization energy is __________.
(i) [Kr] 5s1
(ii) [Ne] 3s2 3p5
(iii) [Ar] 4s2 3d10 4p4
(iv) [Ne] 3s2 3p6 

• (IV)
• (II)
• (III)
• (I)

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

__________ have the lowest first ionization energies of the groups listed.

• Transition elements
•  Halogens
• Alkaline earth metals
• Alkali metals

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Of the following elements, __________ has the most negative electron affinity.

• Be
• N
• F
• Li

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Sodium is much more apt to exist as a cation than is chlorine. This is because __________

• chlorine is a gas and sodium is a solid
• chlorine is more metallic than sodium
• chlorine has a greater ionization energy than sodium does
• chlorine has a greater electron affinity than sodium does

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

How many orbitals make up the 4d subshell?

• 7
• 5
• 3
• 1