Conversions and sig figs
Electromagnetic Spectrum
Quantum numbers and electron configuration
The Periodic Table
100
Find the number of significant figures in each measurement.
A) 5060 L
B) 30.04 mg
C) 3 pennies
D) 640.0 mL
A) 3
B) 4
C) infinite (counted value)
D) 4
100
Rank the following by increasing wavelength (shortest=1, longest=4)
Yellow light, X-ray, Blue light, Microwaves
1. X-ray
2. Blue Light
3. Yellow Light
4. Microwaves
100
What are the shapes of the s, p, d, and f orbitals respectively?
s- sphere
p- bowtie
d- cloverleaf
f- many clouds
100
Classify the following elements as alkali metals, alkaline earth metals, halogens, or noble gases.
A) Cl
B) Ar
C) Na
D) Mg
A) halogen
B) Noble gas
C) Alkali metal
D) Alkaline earth metals
200
Complete this calculation and round to the correct number of significant figures.
22.82 + (2.21 x 3.04)
29.54
200
Calculate the frequency of yellow light with a wavelength of 580 nm
5.17 x 1014 Hz
200
Identify the subshell in which electrons with the following quantum numbers are found:
A) n = 2, l = 1
B) n = 4, l = 2
C) n = 6, l = 0
A) 2p
B) 4d
c) 6s
200
Which atom has the largest atomic radius?
A) As
B) P
C) S
D) Se
A) As
300
How many moles of carbon are in 8.96 g of carbon?
0.746 mol C
300
If an infrared wave has a frequency of 3.0 x 1012 Hz, what is its energy?
1.99 x 10-21 J
300
Write the noble gas electron configuration for Selenium.
[Ar] 4s23d104p4
300
List the following ions in order of increasing radius: K+, Ca2+, Al3+, Si4+.
Si4+ < Al3+ < Ca2+ < K+
400
How many Br atoms are in 0.453 moles of CBr4?
1.09 x 1024 atoms Br
400
Calculate the frequency of radiation with a wavelength of 4.92 cm.
c = 3.00 x 1010 cm s-1
6.10 x 109 Hz
400
Which atom has the electron configuration: 1s22s22p63s23p64s23d104p65s24d2
Zirconium (Zr)
400
Based on their positions in the periodic table, predict which has the smallest atomic radius: Mg, Sr, Si, Cl, I.
Cl
500
How many grams are in 4.63 x 1024 molecules of CCl4?
1180 g
500
A certain metal has a work function of 3.06 x 10-19. What is the threshold frequency?
4.62 x 1014 Hz
500
Complete the following for the element Nickel (Ni).
A) Full spdf electron configuration.
B) Noble gas configuration
C) Orbital diagram
A) 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d⁸
B) [Ar] 4s² 3d⁸
C) 
500
Which atom and/or ion is (are) isoelectronic with Br+: Se2+, Se, As–, Kr, Ga3+, Cl–?
Se, As−