Question 1

The characteristic bright line spectrum of an element is produced when electron(s)

Accepted Answer

A) move to higher energy levels. 
B) fall back to lower energy levels. 
C) are emitted as gamma radiation. 
D) are absorbed into the nucleus. 
A) move to higher energy levels. 
B) fall back to lower energy levels. 
C) are emitted as gamma radiation. 
D) are absorbed into the nucleus.

Question 2

Each horizontal row on the periodic table is called a

Accepted Answer

A) period 
B) family 
C) group 
D) cohort 
A) period 
B) family 
C) group 
D) cohort

Question 3

Which scientist developed the idea that electrons exist in specific regions at various distancesfrom the nucleus?

Accepted Answer

A) Rutherford 
B) Dalton 
C) Thomson 
D) Bohr 
A) Rutherford 
B) Dalton 
C) Thomson 
D) Bohr

Question 4

The element whose orbital diagram is   is manganese.
1s 2s 2p 3s 3p 4s3d

Accepted Answer

A) True 
 B)False

Question 5

Atoms of which element have the following electron configuration?
1s2 2s2 2p3

Accepted Answer

A) Nitrogen 
B) Neon 
C) Nickel 
D) Niobium 
A) Nitrogen 
B) Neon 
C) Nickel 
D) Niobium

Question 6

On the periodic table,elements in the same period contain the same number of

Accepted Answer

A) protons. 
B) electrons. 
C) principal energy levels in their ground state. 
D) valence electrons in their ground state. 
A) protons. 
B) electrons. 
C) principal energy levels in their ground state. 
D) valence electrons in their ground state.

Question 7

How many orbitals in an oxygen atom in the ground state contain only one electron?

Accepted Answer

A) 1 
B) 2 
C) 3 
D) 4 
A) 1 
B) 2 
C) 3 
D) 4

Question 8

Explain how a bright line spectrum is produced.

Accepted Answer

To form a bright line spectrum,elements

Question 9

How many unpaired electrons are in the ground state electron configuration of each of the following elements?
A.Boron
B.Selenium
C.Chlorine
D.Krypton

Accepted Answer

A.Boron has one unpaired elect

Question 10

Which of the following elements has the greatest number of unpaired electrons in its ground state electron configuration?

Accepted Answer

A) C 
B) O 
C) N 
D) F 
A) C 
B) O 
C) N 
D) F

Question 11

All of the following are used to characterize electromagnetic radiation except

Accepted Answer

A) charge 
B) frequency 
C) speed 
D) wavelength 
A) charge 
B) frequency 
C) speed 
D) wavelength

Question 12

Which element has a ground state electron configuration with two unpaired electrons in the 3p sublevel?

Accepted Answer

A) P 
B) Mg 
C) Cl 
D) Si 
A) P 
B) Mg 
C) Cl 
D) Si

Question 13

How many sublevels are occupied in an atom of sulfur in the ground state?

Accepted Answer

A) 2 
B) 3 
C) 4 
D) 5 
A) 2 
B) 3 
C) 4 
D) 5

Question 14

How many orbitals are contained in the 3s sublevel?

Accepted Answer

A) 1 
B) 2 
C) 3 
D) 4 
A) 1 
B) 2 
C) 3 
D) 4

Question 15

The second principal energy level contains four orbitals.

Accepted Answer

A) True 
 B)False

Question 16

The following figure shows a(an):

Accepted Answer

A) d orbital 
B) p orbital 
C) s orbital 
A) d orbital 
B) p orbital 
C) s orbital

Question 17

On the periodic table,elements that behave in a similar manner are found in the same

Accepted Answer

A) series. 
B) cohort. 
C) group. 
D) period. 
A) series. 
B) cohort. 
C) group. 
D) period.

Question 18

List the following orbitals in order of increasing energy:
4d,3p,1s,2p,4p,5s,3d,2s,6s,5p,4s,and 3s.

Accepted Answer

Lowest Energy 1s,2s,

Question 19

How many valence electrons are present in the element with the following ground state electron configuration? 1s2 2s2 2p1

Accepted Answer

A) 1 
B) 2 
C) 3 
D) 4 
A) 1 
B) 2 
C) 3 
D) 4

Question 20

The number of waves that pass a particular point per second is known as

Accepted Answer

A)  frequency. 
B)  wavelength. 
C)  amplitude. 
A)  frequency. 
B)  wavelength. 
C)  amplitude.

The characteristic bright line spectrum of an element is produced when electron(s)

Each horizontal row on the periodic table is called a

Which scientist developed the idea that electrons exist in specific regions at various distancesfrom the nucleus?

The element whose orbital diagram is is manganese. 1s 2s 2p 3s 3p 4s3d

Atoms of which element have the following electron configuration? 1s² 2s² 2p³

On the periodic table,elements in the same period contain the same number of

How many orbitals in an oxygen atom in the ground state contain only one electron?

Explain how a bright line spectrum is produced.

How many unpaired electrons are in the ground state electron configuration of each of the following elements? A.Boron B.Selenium C.Chlorine D.Krypton

Which of the following elements has the greatest number of unpaired electrons in its ground state electron configuration?

All of the following are used to characterize electromagnetic radiation except

Which element has a ground state electron configuration with two unpaired electrons in the 3p sublevel?

How many sublevels are occupied in an atom of sulfur in the ground state?

How many orbitals are contained in the 3s sublevel?

The second principal energy level contains four orbitals.

The following figure shows a(an):

On the periodic table,elements that behave in a similar manner are found in the same

List the following orbitals in order of increasing energy: 4d,3p,1s,2p,4p,5s,3d,2s,6s,5p,4s,and 3s.

How many valence electrons are present in the element with the following ground state electron configuration? 1s² 2s² 2p¹

The number of waves that pass a particular point per second is known as

An Introduction to Chemistry

Standards for Measurement

Elements and Compounds

Properties of Matter

Early Atomic Theory and Structure

Nomenclature of Inorganic Compounds

Quantitative Composition of Compounds

Chemical Equations

Calculations From Chemical Equations

Chemical Bonds: the Formation of Compounds From Atoms

The Gaseous State of Matter

Liquids

Solutions

Acids, Bases, and Salts

Chemical Equilibrium

Oxidationreduction

Nuclear Chemistry

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Exam 10: Modern Atomic Theory and the Periodic Table

The characteristic bright line spectrum of an element is produced when electron(s)

Each horizontal row on the periodic table is called a

Which scientist developed the idea that electrons exist in specific regions at various distancesfrom the nucleus?

The element whose orbital diagram is is manganese. 1s 2s 2p 3s 3p 4s3d

Atoms of which element have the following electron configuration? 1s2 2s2 2p3

On the periodic table,elements in the same period contain the same number of

How many orbitals in an oxygen atom in the ground state contain only one electron?

Explain how a bright line spectrum is produced.

How many unpaired electrons are in the ground state electron configuration of each of the following elements? A.Boron B.Selenium C.Chlorine D.Krypton

Which of the following elements has the greatest number of unpaired electrons in its ground state electron configuration?

All of the following are used to characterize electromagnetic radiation except

Which element has a ground state electron configuration with two unpaired electrons in the 3p sublevel?

How many sublevels are occupied in an atom of sulfur in the ground state?

How many orbitals are contained in the 3s sublevel?

The second principal energy level contains four orbitals.

The following figure shows a(an):

On the periodic table,elements that behave in a similar manner are found in the same

List the following orbitals in order of increasing energy: 4d,3p,1s,2p,4p,5s,3d,2s,6s,5p,4s,and 3s.

How many valence electrons are present in the element with the following ground state electron configuration? 1s2 2s2 2p1

The number of waves that pass a particular point per second is known as

An Introduction to Chemistry

Standards for Measurement

Elements and Compounds

Properties of Matter

Early Atomic Theory and Structure

Nomenclature of Inorganic Compounds

Quantitative Composition of Compounds

Chemical Equations

Calculations From Chemical Equations

Chemical Bonds: the Formation of Compounds From Atoms

The Gaseous State of Matter

Liquids

Solutions

Acids, Bases, and Salts

Chemical Equilibrium

Oxidationreduction

Nuclear Chemistry

Introduction to Organic Chemistry Online Only

Introduction to Biochemistry Online Only

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Atoms of which element have the following electron configuration? 1s² 2s² 2p³

How many valence electrons are present in the element with the following ground state electron configuration? 1s² 2s² 2p¹