Chemistry Test 3
What is the charge of the indium ion that has the [Kr]4d10 electron configuration?
+3
What value of L is not allowed for an electron in an n=3 shell?
3
What is the maximum number of electrons that can have n=4?
32
Calculate the wavelength (in nm) of the blue light emitted by a mercury lamp with a frequency of 6.88 x 10^14 Hz.
436 nm
How many d orbitals are there per single value of n (where n is greater than or equal to 3)?
5
How many different values of ml are possible in the 3d sublevel?
5
How many valence electrons does the ground-state configuration of nitrogen have?
5
Calculate the wavelength (in nm) of a the red light emitted by a neon sign with a frequency of 4.74 x 10^14 Hz.
633 nm
What is the electron configuration of the chloride ion?
[Ne] 3s2 3p6
A laser generates a pulse at 450 nm containing 2.75 x 10^15 photons. What is the energy of the pulse?
1.21 x 10^-3
A nitrogen laser generates a pulse containing 10.0 mJ of energy at a wavelength of 337.1 nm. How many photons are in the pulse? (1 J = 0.0000010 MJ)
1.7 x 10^16 photons
Microwave radiation has a wavelength of 1.0 cm. Calculate the energy of a single photon of this radiation. (Planck's Constant, h=6.626176 x 10^-34 J S.
1.99 x 10^-23 J/photon
What is the maximum number of electrons that can have n=3?
18
Give the ground state electron configuration for Mg2+.
1s2 2s2 2p6
How many sublevels (subshells) are contained in the second shell (n=2) of a given atom?
2
Which element has a partially filled atomic orbital?
Ag
Which of the following has the highest ionization energy?
Argon
Which ion has the largest ionic radii?
K+
Which is the first element in period 3 of the periodic table to be diamagnetic?
Mg
Which of the following occur as the energy of a photon increases?
None of the above
Which one of the following has the highest most metallic character.
Potassium
Which element has the most negative electron affinity?
S
Which of the following statements are TRUE?
The magnetic quantum number (ml) describes the orientation of the orbital.
Which ion is paramagnetic?
Ti2+
Which of the following is not isoelectronic with the others?
Ti4+
Which one of the following has a highest frequency wave?
X-rays
UV rays are a type of "ionizing radiation" and are energetic enough to damage biological tissue such that they degrade into ions and electrons. What other forms of electromagnetic radiation do you think could be ionizing?
X-rays, gamma rays
Which oxide is amphoteric?
ZnO
Choose the ground state electron configuration for Cr3+.
[Ar] 3d3
Give the ground state electron configuration for Se.
[Ar] 4s2 3d10 4p4
Give the ground state electron configuration for Se2-.
[Ar] 4s2 3d10 4p6
Give the ground state electron configuration for Sr.
[Kr]5s2
Place the following types of electromagnetic radiation in order of increasing wavelength. Ultraviolet light, gamma rays, radio waves.
gamma rays < ultraviolet light < radio waves
Which quantum number/s are allowed to have negative values?
ml
Which set of quantum numbers can represent a 4d orbital?
n-4, L=2, mL=-1
Which combination of n and L is not allowed for an electron in an atom?
n=1, L=1
Without doing any calculations, which transition in the hydrogen atom has the shortest wavelength?
n=2 --> n=1
Which of the following transitions represent the emission of a photon with the largest energy?
n=3 to n=1
Identify the set of quantum numbers that correspond to an electron in an s orbital.
n=3, L=0
Identify the set of quantum numbers that correspond to an electron in a p orbital.
n=4, L=1
Identify the set of quantum numbers that correspond to an electron in an f orbital
n=4, L=3
Each of the following sets of quantum numbers is supposed to specify an orbital. Choose the one set of quantum numbers that does not contain an error.
n=4, L=3, ml=-2
Identify the set of quantum numbers that correspond to an electron in a d orbital.
n=5, L=2
Which set of quantum numbers can represent a 5f orbital?
n=5, L=3, mL=-2
