Chem Exam 3

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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.


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