Particles of the Atom
What are the subatomic particles found in the atom?
Proton, neutron, electron
How many different types of orbitals are there that electrons are found in? Name them.
4. s, p, d, and f
What orbital block on the periodic table contains most of the nonmetal elements?
P-block
How would you convert a wavelength in meters to a wavelength in nanometers
Divide by 1 x 109
What are the 7 diatomic elements?
H2 , N2 , F2 , O2 , I2 , Cl2 , Br2
What is the charge and location of protons, neutrons, and electrons? List all 3.
P: Positive; in the nucleus
N: Neutral; in the nucleus
E: Negative; in orbits
How many electrons can fit in the s, p, d, and f orbitals?
2, 6, 10, 14
What orbital block contains the transition metals?
D-block
What are the two equations that relate wavelength, frequency, and energy?
What do the variables stand for?
c = (Lamda)v
E=hv
C = speed of light
Lamda = wavelength
v = Frequency
E = energy
h = Planks constant
How many electrons can fit in the first 4 energy levels?
2, 8, 18, 32
What subatomic particle is responsible for chemical reactivity? Be specific.
The valence electrons
How many sub orbitals does the s, p, d, and f orbital have?
1, 3, 5, 7
What is the name for Se-2 ?
Selenide ion
Explain how an Atomic Emission Spectra of an element is produced.
When an excited electron returns to the ground state it releases energy in the form of different colors of light.
What on the periodic table helps you to determine the number of valence electrons that an element has? Explain.
The group number.
How many protons, neutrons, and electrons does the following atom have?
70173 Yb+P: 70
N: 103
E: 69
What is the short hand electron configuration for Radium?
[Rn] 7s2
Which elements have an electron configuration that end in _ p4 ?
Group 16 elements.
What is the frequency of a photon with a wavelength of 432 nm
6.94 x 1014 Hz
Which element is more reactive, Sodium or Magnesium? Explain using concepts from this unit as well as previous units.
Sodium is more reactive. All elements want to have the same electron configuration as a noble gas. This allows them to have a full valence shell which makes them stable. Sodium has one valence electron and magnesium has 2. It is easier for sodium to lose its one V.E. than it is for Magnesium to lose 2 to be like Neon.
What is the chemical symbol for the Nitrogen atom? What is the ion symbol for the Nitrogen ion?
N2 ; N3-
What is the full electron configuration for Gold?
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f14 5d9
What group of elements do all other elements try to be like? How do they achieve this goal?
Nobel gasses. They either lose or gain electrons. Metals lose, nonmetals gain electrons.
What is the energy of a photon of light with a wavelength of 432 nm?
4.6 x 10-19 J
Which element is more stable, Nitrogen or Oxygen? Explain using a diagram.
Nitrogen. It has a half full p orbital which decreases electron-electron repulsions. Repulsions increase the amount of energy and atom has.