Test 4 chemitry
What is the wavelength of a photon having a frequency of 1.65 x 10^15 Hz
181 nm
All orbitals in the outermost subshell are half filled
19 K
Which of the following ground-state electron configurations corresponds to an atom that has the most negative value of the electron affinity
1s2 2s2 2p6 3s2 3p5 (Cl)
Which of the following orbital occupancy designations is incorrect?
1s^3
The number of orbitals having a given value of l is equal to
2l+1
Which of the following sets of quantum numbers refers to a 3d orbital?
3 2 1 -1/2
3rd shell becomes completely filled
30 Zn
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6
36 Kr
Which of the following subshells does not exist?
3f
What is the wave length of light emitted when the electron in a hydrogen atom undergoes a transition from level n=6 to level n= 2?
4x10^-7m
Number of electrons in the 3d subtle of Mn
5
Contains an equal number of d and p electrons
50 Sn
Contains a total of 21 p electrons
51 Sb
Electron configuration ends in 5p3
51 Sb
4f subshell begins filling
58 Ce
What is the wavelength of an electron traveling at of 3.74% the speed of light?
6.49x10^-11m
2nd energy shell contains 4 electrons
6C
All of the following ground-state electron configurations are correct except
Fe:[Ar] 4s^24d^6
The _____ of a wave is the number of wavelengths of that wave that pass a fixed point in one unit of time and its unit is _____
Frequency, hertz
Two elements that have the same ground-state valance shell configuration of ns^2np^2
Ge and Pb
A laser emits photons having an energy of 3.74x10^-19 J. What color would be expected for the light emitted by this laser?
Green
Which of the following are incorrectly paired?
Group IVA, Halogens
The contribution for which de Broglie is best remembered in modern science is
His proposal that particles of matter should be associated with wavelike behavior
Which principle or rule is violated by the following orbital diagram of an atom in its ground state?
Hund's rule
Which of the following are correct postulates of Bohr's theory of the hydrogen atom?
(1 and 2) The energy of an electron in an atom is quantinized and the principal quantum number specifies each unique every level
Which of the following is true about electromagnetic radiation?
(1 and 2) Wavelength is inversely proportional to frequency and frequency has units of s^-1 of Hz
Which of the following statements is incorrect?
As the energy of a photon increases, its frequency decreases
Based on the photoelectric effect, Einstein proposed the idea that
Light has particle-like properties
Which type of electromagnetic radiation has the lowest frequency?
Radiowaves
Which of the following atoms is paramagnetic in its ground state?
Sodium (Na)
Which of the following statements is true concerning the electron configuration [Ne] 3p^2?
This configuration cannot be the ground-state electron configuration for a Mg atom because it violates the Aufbau principle
Which of the following ground-state electron configurations corresponds to an atom having the largest ionization energy?
[Ne] 3s23p3
Which of the following combination of quantum numbers is permissible?
n=3 l=2 ml= 1 ms= +1/2