Part 1
Visible light, X rays, infrared radiation, and radio waves all have the same
speed
Which model of the atom explains the orbitals of electrons as waves?
quantum model
The region outside the nucleus where an electron can most probably be found is the
electron cloud
Which electron configuration belongs to Argon (Ar)?
a. 1s^2 2s^2 2p^6 3s^2 3p^5
b. 1s^2 2s^2 2p^6 3s^2 3p^6
c. 1s^2 2s^2 2p^6 3s^2 3p^7
d. 1s^2 2s^2 2p^6
1s^2 2s^2 2p^6 3s^2 3p^6
For electromagnetic radiation, c (the speed of light) equals
frequence times wavelength
The main energy levels of an atom are indicated by the
principal quantum number
What is the maximum number of electrons that can be on the p sublevel?
6
Electrons occupy orbitals of lowest energy first is part of what electron configuration rule?
Aufbau principle
A quantum of electromagnetic energy is called a(n)
photon
The angular momentum quantum number indicates the
shape of the orbital
How many orbitals are there in the "p" sublevel?
3
Identify the Electron Configuration for Aluminum (Al)
a. 1s^2 2s^2 2p^6 3s^2 3p^1
b. 1s^2 2s^2 2p^6 3s^2 3p^3
c. 1s^2 2s^2 2p^6 3s^2 4p^1
d. 1s^2 2s^2 2p^6 3s^2 4p^5
a. 1s^2 2s^2 2p^6 3s^2 3p^1
For an electron in an atom to change from the ground state to the excited state, energy must be
absorbed
An electron for which n=4 has more ____ than an electron for which n=2.
energy
How many electrons can the f sublevel hold?
14
What does Pauli exclusion principle state ?
states that no two electrons has the same set of quantum numbers
If electrons in an atom have the lowest possible energies, the atom is in the
ground state
A spherical electron cloud surrounding an atomic nucleus would best represent
s orbital
What atom matches this electron configuration? 1s2 2s2 2p6 3s2 3p6 4s2 3d8
nickel
What atom as the following electron configuration:
1s2 2s2 2p6
neon