Quantum beginnings (Unit 1)
The energy of a 567 nm photon in Joules
30 seconds
What is 3.5 x 10-19 J?
There are this many nodes in the n = 4 state of a a particle-in-a-box
15 seconds
What is 3?
The bond order of O2
30 seconds
What is 2?
The orbital diagram of N
15 seconds
What is
↑↓ ↑↓ ↑ ↑ ↑
1s 2s 2p
?
The threshold frequency of light that ejects photoelectrons from cobalt (work function = 5 eV)
30 seconds
What is 1.2 x 1015 Hz?
Between the following two wavefunctions, this one has more energy:
A(x) = sin(4x)
B(x) = sin(67x)
15 seconds
What is B(x) = sin(67x)?
The number of radial nodes in a 5p orbital
15 seconds
What is 3?
n-l-1 = 5-1-1=3
Between 1H-1H and 19F-19F, this molecule vibrates more quickly
15 seconds
What is 1H-1H?
Among these three objects, this one has the smallest de Broglie wavelength:
a 1H atom traveling at 25% the speed of light
a 10B atom traveling at 10% the speed of light
a 36Ar atom traveling at 1% the speed of light
30 seconds
What is a 10B atom traveling at 10% the speed of light?
The normalization constant for the wavefunction
f(x) = Asin(2x) 0<x<pi
= 0 otherwise
30 seconds
What is sqrt(2/pi)?
This orbital has 6 radial and 2 angular nodes
15 seconds
What is 9d?
The change in energy (in J) when 1H79Br jumps from the ground vibrational state to the first excited vibrational state (spring constant k = 381 N/m)
1 minute
What is 5 x 10-20 J?
This is the energy of the first excited state of K18+ in electronvolts
30 seconds
What is -1227.4 eV?
The number of degenerate states within the 10 lowest energy states of a particle-in-a-3D-box with Lx=Ly=Lz=L
1 minute
What is 9?
The effective nuclear charge for a 4s electron in vanadium (Z = 23)
1 minute
What is 3.3?
S = 0.35+3(0.85)+8(0.85)+8(1)+2(1)=19.7
Zeff = 23-19.7=3.3
The electron configuration of Lu2+
30 seconds
What is [Xe]4f145d1?
A 1282 nm photon is created when an electron falls from this level to n = 3 in a hydrogen atom
1 minute
What is n = 5?
The value of <p> using
f(x) = x2-3x 0<x<3
= 0 otherwise
1.5 minutes
What is 0?
The bond order of LiBe
30 seconds
What is 0.5?
The change in energy (in J) when 14N16O transitions from the ground rotational state to the first excited rotational state (bond length = 115.1 pm)
2 minutes
What is 6.7 x 10-23 J?