We characterize a wave by its _________ and its _________.
Amplitude, Wavelength.
The number of waves that pass a fixed point in a given period of time is called ______.
Frequency
What element has the electron configuration 1s22s22p63s1?
Sodium (Na)
Light quanta, or packets of light, are called _______.
Photons
The more orbitals an atom has the ______ the energy, which results in an unstable atom.
Higher
How many orbitals are in each of the following sublevels? s,p,d,f
1,3,5,7
What is the equation for the speed of light?
c=3.00x108 m/s
The following equation solves for the _______. v=c/λ
Frequency
The lowest possible energy of the electron is its ________ ________.
Ground state
What did Bohr assume about the motion of electrons?
That the electrons travel in circular paths around the nucleus.
What explains the manner in which electrons exist and behave? It also helps us predict and understand the properties of atoms that are directly related to the behavior of the electrons.
The quantum-mechanical model
Which element ends with a electron configuration of 5d6?
Osmium
What color has the highest frequency (energy)? What color has the lowest frequency?
Violet, Red
What orbital do the following shapes represent?
d orbital
Who came up with the principle that one cannot know the speed and position of an electron at the same time?
Heisenberg
What does Hund's rule state?
You must always give one electron to each available orbital before you begin pairing.
What form of electromagnetic radiation has the shortest wavelength on the electromagnetic spectrum? The longest wavelength?
Gamma Rays have the shortest wavelength while radio waves have the longest wavelength.
The observation that many metals emit electrons when light shines upon them.
The photoelectric effect
What is the maximum number of electrons per sub level?
2; s- max 2 electrons, p- max 6 electrons, d- max 10 electrons, f- max 14 electrons
The interaction between waves is called interference. What are the two types and how do they differ?
Constructive interference is when waves interact to make a larger wave (in phase) and destructive interference is when waves interact to cancel each other out (out of phase).
What is the electron configuration for Ag (silver)?
1s22s22p63s23p64s23d104p65s14d10
*takes an electron from the last s and gives it to d to make the atom stable
These sets of quantum numbers are each supposed to specify an orbital. One set, however is incorrect. Which one is it and why?
a.)n=3; l=2; ml=1 b.)n=2; l=1; ml=1
c.)n=4; l=2; ml=0 d.)n=4; l=1; ml=-2
d.) is incorrect because for l=1, the possible values of ml are only -1,0,+1.
Green light has a frequency of about 6.00x1014 s-1. What is the energy of a photon of green light? Express answer to three significant figures.
*Ephoton=hv*
Ephoton=(6.626x10-34 J·s)(6.00x1014 s-1)
Ephoton=3.98x10-19 J
Name three elements with a special electron configuration.
Copper(Au), Silver(Ag), Tungsten(W), Chromium(Cr), Molybdenum(Mo), Gold(Au), or Palladium(Pd)
Find the electron configuration for Sn-
1s22s22p63s23p64s23d104p65s24d105p3 or [Kr]5s24d105p3