Chem Chapter 3 homework review
What are the possible orbital types for n=2 energy level?
s, p
Which of the following is a transition metal? A) Strontium B) Silver C) Sulfur D) Samarium E) Sodium
B) Silver
If n = 2, what is the maximum allowed value for ℓ?
1
How many valence electrons are in a neutral atom of chlorine? A) 0 B) 3 C) 5 D) 7 E) 17
D) 7
Which element has the electron configuration 1s²2s²2p⁶3s²3p⁶4s²3d⁵? A) Fe B) Tc C) Cr D) Mn E) Mo
D) Mn
Which of the following series of isoelectronic ions (Mg²⁺, N³⁻, F⁻, Si⁴⁺) has the ionic radii in order of largest to smallest? A) Mg²⁺ > N³⁻ > F⁻ > Si⁴⁺ B) Mg²⁺ > Si⁴⁺ > F⁻ > N³⁻ C) N³⁻ > F⁻ > Si⁴⁺ > Mg²⁺ D) N³⁻ > F⁻ > Mg²⁺ > Si⁴⁺ E) F⁻ > N³⁻ > Si⁴⁺ > Mg²⁺
D) N³⁻ > F⁻ > Mg²⁺ > Si⁴⁺
Rank the following atoms in order of increasing size (i.e., smallest to largest): Li, Al, Be, Ba, O. A) Li < Al < Be < Ba < O B) Ba < Al < Li < Be < O C) Li < Be < O < Al < Ba D) O < Be < Li < Al < Ba E) O < Li < Be < Ba < Al
D) O < Be < Li < Al < Ba
Energy of a photon is ______ proportional to frequency, and _______ proportional to wavelength. A) directly, directly B) inversely, inversely C) directly, not D) directly, inversely E) inversely, directly
D) directly, inversely
How many valence electrons are in a neutral atom of oxygen? A) 0 B) 2 C) 4 D) 6 E) 8
D) 6
When an electron in excited energy level drops to a lower energy level, a photon is emitted. If the electron is dropping to n=1, which transition will emit the longest wavelength? n=______ to n=1.
2
what is the value of l for d-orbital?
2
What is the frequency of a photon if the energy is 7.27 × 10⁻¹⁹ J? (h = 6.626 × 10⁻³⁴ J • s)
1.10 × 10¹⁵ s⁻¹
What is the de Broglie wavelength (in meters) of a 58.1 g tennis ball when served at a velocity of 44.5 meters per second?
2.56 × 10⁻³⁴ m
What is the wavelength (in nm) of a photon if the energy is 7.26 × 10⁻¹⁹ J? (h = 6.626 × 10⁻³⁴ J • s)
274 nm
What is the wavelength (in nm) of blue light that has a frequency of 6.69 × 10¹⁴ s⁻¹? (c = 3.00 × 10⁸ m/s)
448 nm
Determine the energy, in J, of a photon with a wavelength of 361 nm. (h = 6.626 × 10⁻³⁴ J • s and c = 3.00 × 10⁸ m/s)
5.51 × 10⁻¹⁹ J
A photon has a frequency of 8.63 × 10⁸ Hz. What is the energy of this photon in Joules? (h = 6.626 × 10⁻³⁴ J • s)
5.72 × 10⁻²⁵ J
The green light emitted by a stoplight has a wavelength of 505 nm. What is the frequency of this photon? (c = 3.00 × 10⁸ m/s).
5.94 × 10¹⁴ Hz
Which of the following is the electron configuration of a neutral Fe atom? A) 1s²2s²2p⁶3s²3p⁶4s²3d⁶ B) 1s²2s²2p⁶3s²3p⁶4s²4d⁶ C) 1s²2s²2p⁶3s²3p⁶4s²3d⁵ D) 1s²2s²2p⁶3s²3p⁶4s²4p⁶ E) 1s²2s²2p⁶3s²3p⁶4s²3d⁷
A) 1s²2s²2p⁶3s²3p⁶4s²3d⁶
What is the element symbol for gold? A) Au B) Am C) Al D) A E) An
A) Au
Which is the correct sequence for these types of radiation in order of decreasing energy per photon. A) Gamma rays > visible light > infrared radiation > radio waves B) Radio waves > infrared radiation > visible light > gamma rays C) Radio waves > visible light > infrared radiation > gamma rays D) Visible light > radio waves > infrared radiation > gamma rays E) Visible light > infrared radiation > radio waves > gamma rays
A) Gamma rays > visible light > infrared radiation > radio waves
Which is the correct sequence for these types of radiation in order of decreasing frequency. A) Gamma rays, visible light, infrared radiation, microwaves B) Radio waves, infrared radiation, visible light, gamma rays C) Radio waves, visible light, infrared radiation, microwaves D) Visible light, radio waves, infrared radiation, gamma rays E) Visible light, infrared radiation, radio waves, gamma rays
A) Gamma rays, visible light, infrared radiation, microwaves
Which of the following groups of elements tend to form cations? A) Metals B) Metalloids C) Nonmetals D) Noble gases E) Radioactive elements
A) Metals
Rank the following atoms in order of decreasing size (i.e., largest to smallest): Rb, F, Mg, B, N. A) Rb > Mg > B > N > F B) N > F > B > Mg > Rb C) Rb > Mg > F > N > B D) Mg > Rb > B > N > F E) Rb > Mg > N > B > F
A) Rb > Mg > B > N > F
Photons are shone on a piece of metal and one electron is ejected for each absorbed photon. What happens when the wavelength of light is decreased? A) The ejected electrons would have greater kinetic energy. B) More electrons would be ejected. C) The velocity of the ejected electrons would decrease. D) The ejected electrons would have lower kinetic energy. E) No change in the ejected electrons would be observed.
A) The ejected electrons would have greater kinetic energy.
Which element has the ground state electron configuration [Xe]6s²4f¹⁴5d⁴? A) W B) Pm C) Mo D) Np E) Re
A) W
Which of the following is the electron configuration for Ba? A) [Xe]6s² B) [Rn]6s² C) [Xe]6s¹ D) [Xe]7s² E) [Rn]7s²
A) [Xe]6s²
Which of the following elements is NOT a metal? A) arsenic B) indium C) iridium D) lithium E) lutetium
A) arsenic
Which of the following sets of quantum numbers can describe a 4s electron? A) n = 4, ℓ = 0, mℓ = 0 B) n = 3, ℓ = 0, mℓ = 0 C) n = 3, ℓ = 2, mℓ = 0 D) n = 4, ℓ = 1, mℓ = 0 E) n = 3, ℓ = 1, mℓ = 0
A) n = 4, ℓ = 0, mℓ = 0
Which of the following is true concerning ψ²? A) ψ² describes the probability of finding an electron in space. B) ψ² describes the exact path of electron motion in an orbital. C) ψ² describes the electronic structure of the atom according to the Bohr model. D) ψ² describes the exact volume of an atom. E) ψ² describes the size of an atom.
A) ψ² describes the probability of finding an electron in space.
The ground state electron configuration of an Al atom is A)1s²2s²2p⁶3s²3d¹ B) 1s²2s²2p⁶3s²3p¹ C) 1s²2s²2p⁶3s²3p⁶4s²4p¹ D) 1s²2s²2p⁶3s²3p² E)1s²2s²2p¹
B) 1s²2s²2p⁶3s²3p¹
What is the electron configuration of K⁺? A) 1s²2s²2p⁶3s²3p⁶4s²3d¹⁰4p⁶ B) 1s²2s²2p⁶3s²3p⁶ C) 1s²2s²2p⁶3s²3p⁶4s² D) 1s²2s²2p⁶ E) 1s²2s²2p⁶3s²3p⁵
B) 1s²2s²2p⁶3s²3p⁶
How many electrons are in the n = 1 shell in a neutral fluorine atom? A) 0 B) 2 C) 5 D) 9
B) 2
How many valence electrons are in a neutral atom of magnesium? A) 0 B) 2 C) 3 D) 12
B) 2
The element symbol for arsenic is _____ A) Ar B) As C) Ac D) Ae E) Ai
B) As
Which of the following is an alkaline earth metal? A) Rubidium B) Beryllium C) Iridium D) Americium E) Phosphorous
B) Beryllium
Which element has the ground state electron configuration [Ar]4s²3d¹⁰4p⁵? A) As B) Br C) Se D) Te E) I
B) Br
Which element has the electron configuration 1s²2s²2p⁶3s²3p⁶4s¹3d⁵? A) V B) Cr C) Mo D) Mn E) No element has this configuration
B) Cr
Which element has the electron configuration 1s²2s²2p⁶3s²3p⁶4s²3d¹⁰4p²? A) Si B) Ge C) Sn D) Ga E) As
B) Ge
Which scientist surmised the scientific principle that the position and momentum of an electron cannot be known simultaneously with a high degree of accuracy? A) Planck B) Heisenberg C) Schrödinger D) de Broglie E) Pauli
B) Heisenberg
Which periodic trend quantifies the amount of energy required to remove an electron from a neutral, gaseous atom? A) Atomic Radius B) Ionization Energy C) Ionic Radius D) Electron Affinity E) Electronegativity
B) Ionization Energy
Which type of electromagnetic radiation has the largest wavelength? A) X-rays B) Radio waves C) Infrared D) Ultraviolet E) Microwaves
B) Radio waves
Which of the following elements would be chemically similar to calcium (Ca)? A) K B) Sr C) Sc D) S E) Ga
B) Sr
Elements that are most similar in their properties are found _____ A) in the same period. B) in the same group. C) have the same electron configurations. D) to occur randomly throughout the table. E) diametrically opposite each other on the periodic table.
B) in the same group.
The symbol Hg represents the element _____ A) hydrogen B) mercury C) helium D) holmium E) seaborgium
B) mercury
What element has the symbol Ag? A) argon B) silver C) gold D) arsenic E) astatine
B) silver
The ground state electron configuration of a Se atom is A) 1s²2s²2p⁶3s²3p⁶4s²4p⁴ B) 1s²2s²2p⁶3s²3p⁶4s²4d¹⁰4p⁴ C) 1s²2s²2p⁶3s²3p⁶4s²3d¹⁰4p⁴ D) 1s²2s²2p⁶3s²3p⁴ E) 1s²2s²2p⁶3s²3p⁶4s²3d¹⁰4p³
C) 1s²2s²2p⁶3s²3p⁶4s²3d¹⁰4p⁴
What element is designated by the orbital diagram below? A) N B) O C) F D) Ne E) Cl
C) F
All of the following pairs of ions are isoelectronic except which one? A) Al³⁺ and N³⁻ B) Fe²⁺ and Co³⁺ C) Fe²⁺ and Mn³⁺ D) K⁺ and Ca²⁺ E) Zn²⁺ and Cu⁺
C) Fe²⁺ and Mn³⁺
What is the noble gas core in the electron configuration for Sb? A) Ne B) Ar C) Kr D) Xe E) Rn
C) Kr
Which is the correct sequence for these types of radiation in order of decreasing wavelength. A) Ultraviolet radiation > microwave radiation > x-rays > gamma rays B) X-rays > ultraviolet radiation > microwave radiation > gamma rays C) Microwave radiation > ultraviolet radiation > x-rays > gamma rays D) Microwave radiation > ultraviolet radiation > gamma rays > x-rays E) Gamma rays > x-rays > ultraviolet radiation > microwave radiation
C) Microwave radiation > ultraviolet radiation > x-rays > gamma rays
Which of the following ions has the electron configuration 1s²2s²2p⁶? A) Mg⁺ B) N²⁻ C) N³⁻ D) O⁻ E) F⁺
C) N³⁻
Which of the following states that no two electrons can have the same set of four quantum numbers? A) Hund's rule B) de Broglie wave equation C) Pauli exclusion principle D) Bohr equation E) Schrödinger equation
C) Pauli exclusion principle
Which element has the ground state electron configuration [Kr]5s²4d¹⁰5p³? A) Te B) Pb C) Sb D) Bi E) Sn
C) Sb
The element symbol for tin is _____ A) Sb B) Ti C) Sn D) Tn E) Te
C) Sn
Which particle would have the longest de Broglie wavelength traveling with the same velocity? A) He B) Xe C) electron D) neutron E) Not enough info
C) electron
Which of the following sets of quantum numbers is not allowed? A) n = 2, ℓ = 0, mℓ = 0 B) n = 3, ℓ = 2, mℓ = 0 C) n = 2, ℓ = 2, mℓ = 2 D) n = 3, ℓ = 1, mℓ = -1 E) n = 4, ℓ = 2, mℓ = 1
C) n = 2, ℓ = 2, mℓ = 2
What is the electron configuration of Co²⁺? A) 1s²2s²2p⁶3s²3p⁶3d⁵ B) 1s²2s²2p⁶3s²3p⁶4s²3d⁵ C) 1s²2s²2p⁶3s²3p⁶4s²3d⁹ D) 1s²2s²2p⁶3s²3p⁶3d⁷ E) 1s²2s²2p⁶3s²3p⁶3d⁹
D) 1s²2s²2p⁶3s²3p⁶3d⁷
How many valence electrons are in a neutral atom of nitrogen? A) 0 B) 2 C) 3 D) 5 E) 7
D) 5
Red light has a _____ frequency and a _____ wavelength than ultraviolet rays. A) higher, shorter B) higher, longer C) lower, lower D) lower, longer E) lower, shorter
D) lower, longer
Among the following H atom transitions, which would emit a photon of light with the longest wavelength? A) n = 3 to n = 1 B) n = 5 to n = 3 C) n = 5 to n = 2 D) n = 4 to n = 3 E) n = 3 to n = 2
D) n = 4 to n = 3
Which of the following is the electron configuration of a neutral K atom? A) 1s²2s²2p⁶3s² B) 1s²2s²2p⁶3s¹ C) 1s²2s²2p⁶3s²3p⁶4s² D) 1s²2s²2p⁶3s²3p⁶4s²3d¹⁰4p⁶5s¹ E) 1s²2s²2p⁶3s²3p⁶4s¹
E) 1s²2s²2p⁶3s²3p⁶4s¹
Which color (frequency) of light travels the fastest in a vacuum? A) Red B) Yellow C) Green D) Violet E) All have the same speed
E) All have the same speed
Which of the following is a main group element? A) Yttrium B) Osmium C) Holmium D) Californium E) Bismuth
E) Bismuth
What quantum mechanics principle states that electrons are added to atomic orbitals with the same energy so that each orbital is singularly occupied with electrons having the same spin? A) Schrödinger's equation B) Heisenberg uncertainty principle C) Pauli exclusion principle D) Aufbau principle E) Hund's rule
E) Hund's rule
Which of the following is a halogen? A) Sodium B) Copper C) Neodymium D) Selenium E) Iodine
E) Iodine
Which of the following is most likely to form a +2 ion? A) K B) Sc C) Al D) O E) Mg
E) Mg
Which following ions has the same electron configuration as a noble gas? A) C⁻ B) O²⁺ C) Cl⁺ D) P²⁻ E) N³⁻
E) N³⁻
The element symbol for lead is __. A) La B) Le C) Sb D) Lu E) Pb
E) Pb
Similar properties recur periodically when elements are arranged according to increasing atomic number is the statement of the ______. A) Mendeleev's Law B) Moseley's Law C) General Chemistry Law D) Law of Atomic Position E) Periodic Law
E) Periodic Law
Identify the region of the electromagnetic spectrum where the wavelength measurement of 450 nm can be found. A) Gamma rays B) Microwaves C) Infrared D) X-rays E) Visible light
E) Visible light
Which of the following forms of radiation has the highest frequency? A) red light B) microwaves C) ultraviolet rays D) radio waves E) gamma rays
E) gamma rays
Which of the following forms of radiation has the shortest wavelength? A) red light B) microwaves C) ultraviolet rays D) radio waves E) gamma rays
E) gamma rays
Which of the following types of visible light has the longest wavelength?
Red
which of the following quantum numbers describes the shape of an orbital?
l
Which of the following is NOT consistent with Bohr's model of the hydrogen atom?
the farther the electron is from the nucleus the lower its energy
