Question 1

What is the period and Group for the element Boron?

Accepted Answer

A) Period 2,Group 13A 
B) Period 3,Group 3A 
C) Period 2,Group 3A 
D) Period 4,Group 8A 
A) Period 2,Group 13A 
B) Period 3,Group 3A 
C) Period 2,Group 3A 
D) Period 4,Group 8A

Question 2

Which element has the following orbital diagram?

Accepted Answer

A) O 
B) N 
C) C 
D) Li 
A) O 
B) N 
C) C 
D) Li

Question 3

What is the maximum number of electrons that can occupy the third (n=3)shell?

Accepted Answer

A) 2 
B) 3 
C) 6 
D) 8 
E) 18 
A) 2 
B) 3 
C) 6 
D) 8 
E) 18

Question 4

Which element is a noble gas?

Accepted Answer

A) H 
B) Ne 
C) Pr 
D) Ra 
E) More than one of the elements listed is a noble gas. 
A) H 
B) Ne 
C) Pr 
D) Ra 
E) More than one of the elements listed is a noble gas.

Question 5

All atoms of the same element contain the same number of protons.

Accepted Answer

A) True 
 B)False

Question 6

A compound is a pure substance formed by chemically combining two or more elements together.

Accepted Answer

A) True 
 B)False

Question 7

Which statement is not part of the modern description of the electronic structure of an atom?

Accepted Answer

A) Electrons occupy discrete energy levels. 
B) Electrons move freely in space. 
C) The energy of electrons is quantized. 
D) The energy of electrons is restricted to specific values. 
A) Electrons occupy discrete energy levels. 
B) Electrons move freely in space. 
C) The energy of electrons is quantized. 
D) The energy of electrons is restricted to specific values.

Question 8

A column in the periodic table is called a period.

Accepted Answer

A) True 
 B)False

Question 9

Which element has the following orbital diagram?

Accepted Answer

A) Ar 
B) Cl 
C) F 
D) S 
A) Ar 
B) Cl 
C) F 
D) S

Question 10

The electron-dot symbol for barium is   .

Accepted Answer

A) True 
 B)False

Question 11

The element symbol for sulfur is ________.

Accepted Answer

A) S 
B) Su 
C) Sf 
D) Sl 
A) S 
B) Su 
C) Sf 
D) Sl

Question 12

In the diagram below,which highlighted element is an f block element?

Accepted Answer

A) A 
B) B 
C) C 
D) D 
E) E 
A) A 
B) B 
C) C 
D) D 
E) E

Question 13

How many protons are in the isotope   ?

Accepted Answer

A) 238 
B) 146 
C) 92 
D) 330 
A) 238 
B) 146 
C) 92 
D) 330

Question 14

The chemical formula S8 represents a compound.

Accepted Answer

A) True 
 B)False

Question 15

Which atom has the smallest atomic radius?

Accepted Answer

A) K 
B) Ga 
C) Br 
D) Rb 
A) K 
B) Ga 
C) Br 
D) Rb

Question 16

The electron configuration of chlorine is 1s22s22p63s23p5. Which statement about chlorine is incorrect?

Accepted Answer

A) Chlorine has five valence electrons 
B) Chlorine's valence shell is the third shell 
C) Chlorine has five electrons in the 3p subshell 
D) Chlorine has 17 total electrons 
A) Chlorine has five valence electrons 
B) Chlorine's valence shell is the third shell 
C) Chlorine has five electrons in the 3p subshell 
D) Chlorine has 17 total electrons

Question 17

The elements in a column of the periodic table are collectively referred to as ________.

Accepted Answer

A) metals 
B) a period 
C) a group 
D) a series 
E) metalloids 
A) metals 
B) a period 
C) a group 
D) a series 
E) metalloids

Question 18

Which element has the following orbital diagram?

Accepted Answer

A) Li 
B) Be 
C) Na 
D) Mg 
A) Li 
B) Be 
C) Na 
D) Mg

Question 19

Which element is most likely to be a good conductor of electricity?

Accepted Answer

A) Ar 
B) N 
C) F 
D) Ni 
E) O 
A) Ar 
B) N 
C) F 
D) Ni 
E) O

Question 20

Phosphorus has 15 valence electrons.

Accepted Answer

A) True 
 B)False

Exam 2: Atoms and the Periodic Table

What is the period and Group for the element Boron?

Which element has the following orbital diagram?

What is the maximum number of electrons that can occupy the third (n=3)shell?

Which element is a noble gas?

All atoms of the same element contain the same number of protons.

A compound is a pure substance formed by chemically combining two or more elements together.

Which statement is not part of the modern description of the electronic structure of an atom?

A column in the periodic table is called a period.

Which element has the following orbital diagram?

The electron-dot symbol for barium is .

The element symbol for sulfur is ________.

In the diagram below,which highlighted element is an f block element?

How many protons are in the isotope ?

The chemical formula S8 represents a compound.

Which atom has the smallest atomic radius?

The electron configuration of chlorine is 1s22s22p63s23p5. Which statement about chlorine is incorrect?

The elements in a column of the periodic table are collectively referred to as ________.

Which element has the following orbital diagram?

Which element is most likely to be a good conductor of electricity?

Phosphorus has 15 valence electrons.

Matter and Measurement

Ionic Compounds

Covalent Compounds

Chemical Reactions

Energy Changes,reaction Rates,and Equilibrium

Gases,liquids,and Solids

Solutions

Acids and Bases

Nuclear Chemistry

Introduction to Organic Molecules and Functional Groups

Alkanes

Unsaturated Hydrocarbons

Organic Compounds That Contain Oxygen,halogen,or Sulfur

The Three-Dimensional Shape of Molecules

Aldehydes and Ketones

Carboxylic Acids,esters,and Amides

Amines and Neurotransmitters

Lipids

Carbohydrates

Amino Acids,proteins,and Enzymes

Nucleic Acids and Protein Synthesis

Metabolism and Energy Production

Carbohydrate,lipid,and Protein Metabolism

Filters

The chemical formula S₈ represents a compound.

The electron configuration of chlorine is 1s²2s²2p⁶3s²3p⁵. Which statement about chlorine is incorrect?