Chem Exam 3
spherical
Describe the shape of a s orbital.
1s22s22p63s23p64s23d104p6
Give the complete electronic configuration for Br-.
[Ar]4s23d104p6
Give the ground state electron configuration for Br⁻.
[Kr]5s2
Give the ground state electron configuration for Sr
46
Give the number of core electrons for Cd.
28
Give the number of core electrons for Se.
7
Give the number of valence electrons for Cl.
42
Give the number of valence electrons for ICl5.
32
Give the number of valence electrons for SO42-
22
Give the number of valence electrons for XeI2.
n = 2, l = 1, ml = 1, ms = -1/2
Give the set of four quantum numbers that could represent the last electron added (using the Aufbau principle) to the Ne atom.
8
How many valence electrons do the noble gases possess?
powerful oxidizing agents
Identify a characteristic of halogens.
yellow
Identify the color of a flame test for sodium.
Cs
Identify the most reactive alkali metal with water.
triple covalent bond
Identify the strongest bond.
in the same sublevel, but not necessarily in the same level
If two electrons in the same atom have the same value of "l", they are
Pauli exclusion principle
No two electrons can have the same four quantum numbers is known as the
infrared and ultraviolet
On the electromagnetic spectrum, visible light is immediately between two other wavelengths. Name them.
NaF > KCl > RbBr
Place the following in order of decreasing magnitude of lattice energy. NaF RbBr KCl
Na⁺ < Rb⁺ < Br⁻
Place the following in order of increasing radius. Br⁻ Na⁺ Rb⁺
microwaves < x-rays< gamma rays
Place the following types of electromagnetic radiation in order of increasing frequency. x-rays microwaves gamma rays
wavelength
The distance between adjacent crests is called
vanadium
The element that corresponds to the electron configuration 1s22s22p63s23p64s23d3 is
-325 kJ
Use the data given below to construct a Born-Haber cycle to determine the electron affinity of Br.
s, p, d
What are the possible orbitals for n = 3?
7
What is the maximum number of f orbitals that are possible?
destructive interference
When waves of equal amplitude from two sources are out of phase when they interact, it is called ________.
violet
Which of the following colors of electromagnetic radiation has the shortest wavelength?
angular momentum quantum number
Which of the following quantum numbers describes the shape of an orbital?
2 Li⁺(g) + O2⁻(g) → Li2O(s)
Which of the following reactions is associated with the lattice energy of Li2O (ΔH°latt)?
An ionic bond is much stronger than most covalent bonds.
Which of the following statements is TRUE?
An orbital that penetrates into the region occupied by core electrons is less shielded from nuclear charge than an orbital that does not penetrate and therefore has a lower energy.
Which of the following statements is TRUE?
orange
Which of the following types of electromagnetic radiation has the lowest frequency?
Sr⁺(g) → Sr2⁺(g) + e⁻
Which reaction below represents the second ionization of Sr?
1 pair
A single covalent bond contains ________ of electrons.
3 pairs
A triple covalent bond contains ________ of electrons.
103 nm
Calculate the wavelength of light associated with the transition from n = 1 to n = 3 in the hydrogen atom.
H-F
Choose the bond below that is most polar.