Ch 24 II Flashcards
The greater the value of l, the
Greater the energy of the subshell
The first two columns of the periodic table have what subshells?
S
The right block of the period table has what subshell?
P
Columns from 3-12 have what subshell?
D
The Lanthanide and Actinide series have what subshell?
F
The magnetic quantum number (ml) describes the
Orientation of the orbital in space
The possible values of the magnetic quantum number (ml) range from
l to -l
The shape and energy of each orbital depend on
The subshell in which the orbital is found
When two electrons are in the same orbital, their spins are
Opposite due to the Pauli exclusion principle
Electrons with parallel spins are electrons found in
Different orbitals with the same ms values
Paired electrons are electrons with
Opposite spins in the same orbital
What is the Aufbau principle?
Subshells are filled from the lowest to highest energy, each one filling up before the next
What rule is used to determine subshell energy?
(n + l)
Which will fill first, the 3d subshell or the 4s?
4s, since it has lower energy
Materials are paramagnetic if it has
Unpaired electrons are aligned by a magnetic field, attracting them to a field
Materials that have no unpaired electrons are repelled by a magnetic field are
Diamagnetic
How stable are atoms with half-filled and fully-filled subshells?
Very stable
Mg2+ has how many electrons?
10 electrons
The ratio of naturally occurring chlorine-35 to its isotope chlorine-37 is 3:1. What is the standard atomic weight of chlorine?
35.5
A student represents electrons within the same orbital as having parallel spins. This goes against which principle?
Pauli exclusion principle
The maximum number of electrons in a shell with principle quantum number (n) of 4 is:
32 electrons
2)(4)(4
In Bohr’s model of the hydrogen atom, the energy of an electron is dependent on:
The principle quantum number (n)
This is because the equation for energy of Bohr model is:
E = -Rh / n^2
What describes the excitation exhibited when an electron jumps from its ground state to a higher energy level?
Atomic absorption spectrum
The Pauli exclusion principle states that
No two electrons can have the same quantum number
Atoms with the same atomic numbers but different mass numbers are known as
Isotopes
If the principle quantum number (n) is 2, what orbitals will be present?
S and P
L = 0, 1 = s, p
What is the total number of electrons that can be found in a subshell with angular momentum number (l) = 2?
10 electrons
4l + 2
An element with the atomic number 26 has how many electrons in the 3d subshell?
6
In going from 3p6 4s1 to 3p5 4s2, an electron would
Absorb energy
