Title: Chapter 6: Electronic Structure and Periodic Properties of Elements
Course: Test

Q: Provide the element name with a ground-state electron configuration of 1s^22s2p^4
- Potassium
- carbon
- oxygen
A: oxygen

Q: What is the ground-state electron configuration of calcium?
- 1s^22s^22p^63s^23p^64s^2
- 1s^22s^22p^6
- 1s^22s^22p^63s^2
A: 1s^22s^22p^63s^23p^64s^2

Q: Due to periodicity, which element would you expect to behave most like sodium?
- calcium
- aluminum
- potassium
A: potassium

Q: Which of the following has the longest wavelength?
- x rays
- microwaves
- UV light
A: microwaves

Q: Elements in group 17 are considered _____________.
- alkali Metals
- halogens
- noble Gases
A: halogens

Q: Due to periodicity, which of the following elements has chemical behavior similar to that of Oxygen?
- bromine
- sulfur
- carbon
A: sulfur

Q: Which of the following sets of elements are the most similar to each other?
- F, Cl, Br, I
- C, N, O, F
- H, He
A: F, Cl, Br, I

Q: According to periodic trends, arrange the following ions, potassium, magnesium, and aluminum in order of increasing ionic size.
- potassium ion, magnesium ion, and aluminum ion
- aluminum ion, magnesium ion, and potassium ion
- aluminum ion, potassium ion, and magnesium ion
A: aluminum ion, magnesium ion, and potassium ion

Q: During a UV-Visible spectroscopy experiment, a student notes a wavelength peak measurement at 280 nm. What region of the electromagnetic spectrum was this peak observed?
- visible region
- ultra-violet region
- both ultra-violet and visible region
A: ultra-violet region

Q: During a UV-Visible spectroscopy experiment, a student notes 2 wavelength peak measurements at 580nm and 685nm. What region of the electromagnetic spectrum were these peaks observed?
- visible region
- ultra-violet region
- both ultra-violet and visible region
A: visible region

Q: Provide the element name with a ground-state electron configuration of 1s^22s2p^4
- potassium
- carbon
- oxygen
A: oxygen

Q: What is the ground-state electron configuration of Calcium?
- 1s^22s^22p^63s^23p^64s^2
- 1s^22s^22p^6
- 1s^22s^22p^63s^2
A: 1s^22s^22p^63s^23p^64s^2

Q: As you move down a group of elements (family), the number of valence electrons
- increases.
- stays the same.
- increases and then decreases.
A: increases.

Q: Due to periodicity, which element would you expect to behave most like sodium?
- calcium
- aluminum
- potassium
A: potassium

Q: Which of the following has the longest wavelength?
- x rays
- microwaves
- UV light
A: microwaves

Q: What is the maximum number of electrons that can occupy the 4^th energy level or shell?
- 4
- 16
- 32
A: 32

Q: How many subshells are found in the 2^nd energy level or shell?
- 2
- 4
- 8
A: 2

Q: What is the maximum number of orbitals found in the 3^rd energy level or shell?
- 3
- 9
- 18
A: 9

Q: Based on the following electron configuration, [Kr]5s^24d^105p^5, this element would most likely _____.
- gain an electron to form a -1 anion and could form an ionic bond with a metal
- loss an electron to form a -1 anion and could form an ionic bond with a metal
- gain an electron to form a -1 anion and could form an ionic bond with a non-metal
A: gain an electron to form a -1 anion and could form an ionic bond with a metal

Q: Based on the following electron configuration, [Xe]6s^2, this element would most likely _____.
- loss 2 electrons to form a +2 cation and could form an ionic bond with a metal
- loss 2 electrons to form a +2 cation and could form an ionic bond with a non-metal
- gain 2 electrons to form a +2 cation and could form an ionic bond with a non-metal
A: loss 2 electrons to form a +2 cation and could form an ionic bond with a non-metal

Q: Identify the transition metal ion and the number of electrons with the following electron configuration, [Ar]4s^03d^7.
- cobalt (I) ion and 25 electrons
- cobalt (II) ion and 25 electrons
- cobalt (III) ion and 25 electrons
A: cobalt (II) ion and 25 electrons

Q: UV-Visible spectroscopy can be used to study chromophores such as C=C-C=C which absorb in the UV region of the electromagnetic spectrum ranging from _____.
- 100 to 300 nm
- 400 to 600 nm
- 600 to 800 nm
A: 100 to 300 nm

Q: What is the electron configuration of a copper atom?
- [Ar]4s^23d^9
- [Ar]4s^13d^10
- [Ar]4s^03d^11
A: [Ar]4s^13d^10

Q: What is the electron configuration of a copper (II) ion?
- [Ar]4s^23d^7
- [Ar]4s^13d^8
- [Ar]3d^9
A: [Ar]3d^9

Q: What is the ground-state electron configuration of carbon?
- 1s^22s^12p^3
- 1s^22s^22p^2
- 1s^22s^32p^1
A: 1s^22s^22p^2

Q: In which orbital does an electron add to in chlorine to form an octet?
- 3s
- 3p
- 3d
A: 3p

Q: What is the m_s value for an electron added to bromine to form an octet?
- +1/2
- -1/2
- 0
A: -1/2

Q: In what block, group, and period on the periodic table can the atom with a 1s^22s^22p^63s^23p^64s^23d^104p^5 ground-state electron configuration be found?
- p-block, group 7A, and period 3
- p-block, group 7A, and period 4
- p-block, group 7A, and period 5
A: p-block, group 7A, and period 4

Q: In what block, group, and period on the periodic table can the atom with a 1s^22s^22p^63s^1 ground-state electron configuration be found?
- s-block, group 1A, and period 2
- s-block, group 1A, and period 3
- s-block, group 1A, and period 4
A: s-block, group 1A, and period 3

Q: How many electrons are in the most likely ion formed from an atom located in group 6A and period 3?
- 16 electrons
- 17 electrons
- 18 electrons
A: 18 electrons

Q: How many electrons are in the most likely ion formed from an atom located in group 2A and period 5?
- 36 electrons
- 38 electrons
- 37 electrons
A: 36 electrons

Q: Which of the following sources of radiation is higher in energy?
- visible light
- ultra violet light
- infrared light
A: ultra violet light

Q: Which of the following sources of radiation has a longer wavelength?
- visible light
- infrared light
- ultra violet light
A: infrared light

Q: 23.1 L of an unknown gas has a mass of 28.85 g at STP. What is the identity of the unknown gas?
- SO_2
- CO
- NO
A: CO

Q: According to periodic trends, which metal has the lowest ionization energy?
- Li
- Cs
- Rb
A: Cs

Q: According to periodic trends, which metal has the highest ionization energy?
- Li
- Cs
- Rb
A: Li

Q: Which nonradioactive group I metal would be the most reactive in water and why?
- Cesium would be the most reactive group I metal in water because it has only one valence electron.
- Cesium would be the most reactive group I metal in water because it’s one valence electron is the closest to the nucleus compared to the other metals.
- Cesium would be the most reactive group I metal in water because it’s one valence electron is the farthest from the nucleus compared to the other metals.
A: Cesium would be the most reactive group I metal in water because it’s one valence electron is the farthest from the nucleus compared to the other metals.

Q: Which of the following elements have a tendency to gain electrons?
- Cl, O, F
- N, O, Al
- Cl, F, Ga
A: Cl, O, F