Question 1

Compared to ultraviolet radiation,infrared radiation occurs at ________ wavelengths,________ frequencies,and ________ energies.

Accepted Answer

The answer of Compared to ultraviolet radiation,infrared radiation occurs at...

Question 2

Which has the highest Z_eff for its valence electrons? A)Rb B)Cs C)Sn D)I

Accepted Answer

Iodine has the highest Z_eff for its valence electrons because it is the smallest and most electronegative of the given elements.

Question 3

What is the general valence-electron ground-state electron configuration for neutral alkaline earth metals? A)ns¹ B)ns² C)1s²2s¹ D)1s²2s²

Accepted Answer

Alkaline earth metals have two valence electrons in their ns subshell. Therefore, the general valence-electron ground-state electron configuration for neutral alkaline earth metals is ns2. Option A includes a U1P11 term, which does not exist in electron configurations. Option C includes a 1s term, which is the innermost shell and not related to the valence electrons. Option D includes a U1P12 term, which also does not exist in electron configurations. Option B is the only option that includes ns², which corresponds to the ns2 valence electron configuration.

Question 4

How many orbitals are there in the third shell?
A)2
B)3
C)4
D)9

Accepted Answer

The third shell (n=3) contains s, p, and d orbitals. The s orbital has 1, the p orbitals have 3, and the d orbitals have 5, totaling 9 orbitals.

Question 5

Of the following,which atom has the largest atomic radius?
A)Li
B)F
C)Na
D)Cl

Accepted Answer

The atomic radius increases as you move down and to the left on the periodic table. Among the given options, Na is located more towards the left and one row below Li, making it larger in size compared to Li, F, and Cl.

Question 6

Which of the following have their valence electrons in the same shell?
A)Na,P,Cl
B)Al,Ge,Sb
C)P,As,Sb
D)Ne,Ar,Cl

Accepted Answer

The answer of Which of the following have their valence...

Question 7

How many valence electrons does a neutral tellurium atom have?
A)2
B)4
C)6
D)52

Accepted Answer

Tellurium is in group 16 or the oxygen family of the periodic table, which means it has 6 valence electrons.

Question 8

Which of the following have the same number of valence electrons?
A)Li,N,F
B)B,Si,As
C)N,As,Bi
D)He,Ne,F

Accepted Answer

N, As, and Bi are all in group 15 of the periodic table and have 5 valence electrons each.

Question 9

Of the following,which atom has the smallest atomic radius?
A)Na
B)S
C)K
D)Se

Accepted Answer

The answer of Of the following,which atom has the smallest...

Question 10

Which element has the ground-state electron configuration [ Rn] 7s²6d² ? A)Rf B)Sg C)Th D)Pa

Accepted Answer

The electron configuration belongs to Thorium (Th), which has 90 electrons. The configuration can be broken down as [Rn] (86 electrons), 7s2 6d1 (3 electrons), 5f2 (2 electrons), and 4s2 4p0 (2 electrons). None of the other choices (Rf, Sg, Pa) have 90 electrons in their ground-state configurations.

Question 11

What are the possible values of l if n = 3?
A)3
B)0,1,or 2
C)-4,-3,-2,-1,0,+1,+2,+3,or +4
D)-5,-4,-3,-2,-1,0,+1,+2,+3,+4,or +5

Accepted Answer

For a given value of n, l can have possible values ranging from 0 to (n-1). Therefore, for n=3, l can have possible values of 0, 1, or 2. Option B lists these possible values.

Question 12

For hydrogen,what is the wavelength of the photon emitted when an electron drops from a 4f orbital to a 2p orbital in a hydrogen atom? The Rydberg constant is 1.097 × 10^-2 nm^-1. A)656.3 nm B)486.2 nm C)364.6 nm D)2)057 × 10^-3 nm

Accepted Answer

The answer of For hydrogen,what is the wavelength of the...

Question 13

Middle C on a piano has a frequency of 262 Hz.In a vacuum 262 Hz has a corresponding wavelength of ________ m.

Accepted Answer

The answer of Middle C on a piano has a...

Question 14

Which atom in each group (I and II)has the smallest atomic radius?
(I)Ba,Hf,At (II)As,Sb,Bi
A)Ba;As
B)Ba;Bi
C)At;As
D)At;Bi

Accepted Answer

Atomic radius generally decreases from left to right across a period and increases from top to bottom down a group in the periodic table. Therefore, the smallest atom in Group I would be At (astatine) which is located at the top of the group. In Group II, the smallest atom would be Be (beryllium) which is not listed as an option. Among the given options, the smallest atom in Group II would be Bi (bismuth) which is located at the bottom of the group. Therefore, the answer is At (Group I) and Bi (Group II) with the smallest atomic radii.

Question 15

The smallest number that can be used for m or n in the Balmer-Rydberg equation is ________ and the largest number is ________.

Accepted Answer

The answer of The smallest number that can be used...

Question 16

The property of a wave that is associated with brightness or intensity is ________.

Accepted Answer

The answer of The property of a wave that is...

Question 17

For a hydrogen atom,which electronic transition would result in the emission of a photon with the highest energy?
A)2s → 3p
B)2p → 6d
C)4p → 2s
D)5f → 3d

Accepted Answer

The energy of a photon is directly proportional to the difference in energy between the two energy levels involved in the electronic transition. According to the Bohr model of the hydrogen atom, an electron in the 4th energy level (4p) has a higher energy compared to an electron in the 2nd energy level (2s). Therefore, the transition from 4p to 2s would result in the emission of a photon with the highest energy. The other choices involve either higher level energy states that are not allowed or very low energy differences resulting in low-energy photons.

Question 18

The visible region of the electromagnetic radiation spectrum extends from ________ nm to ________ nm.

Accepted Answer

The answer of The visible region of the electromagnetic radiation...

Question 19

The amount of data that can be stored in an optical disc storage medium is related to the wavelength of the laser employed.Blu-Ray discs that are read by a laser having a wavelength of 405 nm have a much greater storage capacity than a DVD that is read by a 650 nm laser.The color of the 405 nm laser beam is ________,whereas the color of the 650 nm laser is ________.

Accepted Answer

The answer of The amount of data that can be...

Question 20

A radio station that broadcasts at 99.5 MHz is broadcasting at a frequency of ________ s^-1.

Accepted Answer

The answer of A radio station that broadcasts at 99.5...

Quiz 5: Periodicity and the Atomic Structure of Atoms

Compared to ultraviolet radiation,infrared radiation occurs at wavelengths, frequencies,and energies.

Which has the highest Z_eff for its valence electrons?

What is the general valence-electron ground-state electron configuration for neutral alkaline earth metals?

How many orbitals are there in the third shell?

Of the following,which atom has the largest atomic radius?

Which of the following have their valence electrons in the same shell?

How many valence electrons does a neutral tellurium atom have?

Which of the following have the same number of valence electrons?

Of the following,which atom has the smallest atomic radius?

Which element has the ground-state electron configuration [ Rn] 7s²6d² ?

What are the possible values of l if n = 3?

For hydrogen,what is the wavelength of the photon emitted when an electron drops from a 4f orbital to a 2p orbital in a hydrogen atom? The Rydberg constant is 1.097 × 10^-2 nm^-1.

Middle C on a piano has a frequency of 262 Hz.In a vacuum 262 Hz has a corresponding wavelength of ________ m.

Which atom in each group (I and II) has the smallest atomic radius? (I) Ba,Hf,At (II) As,Sb,Bi

The smallest number that can be used for m or n in the Balmer-Rydberg equation is and the largest number is .

The property of a wave that is associated with brightness or intensity is ________.

For a hydrogen atom,which electronic transition would result in the emission of a photon with the highest energy?

The visible region of the electromagnetic radiation spectrum extends from nm to nm.

A radio station that broadcasts at 99.5 MHz is broadcasting at a frequency of ________ s^-1.

Quiz 5: Periodicity and the Atomic Structure of Atoms

Compared to ultraviolet radiation,infrared radiation occurs at ________ wavelengths,________ frequencies,and ________ energies.

Which has the highest Zeff for its valence electrons?

What is the general valence-electron ground-state electron configuration for neutral alkaline earth metals?

How many orbitals are there in the third shell?

Of the following,which atom has the largest atomic radius?

Which of the following have their valence electrons in the same shell?

How many valence electrons does a neutral tellurium atom have?

Which of the following have the same number of valence electrons?

Of the following,which atom has the smallest atomic radius?

Which element has the ground-state electron configuration [ Rn] 7s26d2 ?

What are the possible values of l if n = 3?

For hydrogen,what is the wavelength of the photon emitted when an electron drops from a 4f orbital to a 2p orbital in a hydrogen atom? The Rydberg constant is 1.097 × 10-2 nm-1.

Middle C on a piano has a frequency of 262 Hz.In a vacuum 262 Hz has a corresponding wavelength of ________ m.

Which atom in each group (I and II) has the smallest atomic radius? (I) Ba,Hf,At (II) As,Sb,Bi

The smallest number that can be used for m or n in the Balmer-Rydberg equation is ________ and the largest number is ________.

The property of a wave that is associated with brightness or intensity is ________.

For a hydrogen atom,which electronic transition would result in the emission of a photon with the highest energy?

The visible region of the electromagnetic radiation spectrum extends from ________ nm to ________ nm.

A radio station that broadcasts at 99.5 MHz is broadcasting at a frequency of ________ s-1.

Compared to ultraviolet radiation,infrared radiation occurs at wavelengths, frequencies,and energies.

Which has the highest Z_eff for its valence electrons?

Which element has the ground-state electron configuration [ Rn] 7s²6d² ?

For hydrogen,what is the wavelength of the photon emitted when an electron drops from a 4f orbital to a 2p orbital in a hydrogen atom? The Rydberg constant is 1.097 × 10^-2 nm^-1.

The smallest number that can be used for m or n in the Balmer-Rydberg equation is and the largest number is .

The visible region of the electromagnetic radiation spectrum extends from nm to nm.

A radio station that broadcasts at 99.5 MHz is broadcasting at a frequency of ________ s^-1.