Hz, /s, or s-1 is the unit for what variable?
frequency
Which sublevel has the most energy: 3s, 4s, 3p, 3s
4s
How many electrons can each orbital hold? #13
2
Write the electron configuration for calcium.
1s2 2s2 2p6 3s2 3p6 4s2
What element is represented:
1s2 2s2 2p6 3s2 3p6 4s2 3d9
copper
What is the wavelength of green light with a frequency of 3.20 x 1015 Hz?
9.38 x 10-8 m
Write the noble gas abbreviation for gold
[Xe]6s24f145d9
What is wrong with this electron configuration?
1s2 2s2 2p6 3s1 3p6
The 3s is lower energy and should be filled before the 3p, which is higher energy: the Aufbau principle
What is the noble gas abbreviation for Chlorine?
[Ne] 3s2 3p5
What is the relationship between frequency and wavelength?
inverse
What is the frequency of an ultraviolet wave whose wavelength is 7.50 x 10-4 meters?
4.00 x 1011 Hz
Which type of sublevels are present in energy level 4?
s, p, d, f
How many valence electrons does an alkaline earth metal have?
2
What is the full configuration of potassium ion?
1s2 2s2 2p6 3s2 3p6
When an electron gains energy and moves up an energy level, it is ______________
Excited
What is the energy of a photon whose frequency is 4.30 x 1016 Hz?
2.85 x 10-17 J
How many electrons can each sublevel hold?
s-2, p-6, d-10, f-14
What is wrong with this configuration?
1s2 2s2 3s2 3px2 3py1
1 electron must be placed in each orbital on a sublevel before any orbital can have 2 electrons.
Hund's Rule
What is the full configuration for Kr?
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6
When excited electrons fall back to the ground state, they release energy and produce a _____________
bright line spectrum or distinct color
List the electromagnetic spectrum in order from lowest frequency to highest frequency.
radio waves, microwaves, infrared, visible light, ultraviolet, x-rays, gamma rays
Which family on the periodic table has 8 electrons in its highest energy level?
noble gases, (VIIIA or 18)
What is the abbreviated electron configuration for thallium, #81
[Xe] 6s2 5d10 4f146p1
What is the speed of light?
3.00 x 108 m/s