Question 1

Antimony is a metalloid containing 51 protons that is alloyed with lead and used in car batteries. What is the element symbol for antimony?

Accepted Answer

A) A 
B) An 
C) At 
D) Sb 
E) Cr 
A) A 
B) An 
C) At 
D) Sb 
E) Cr

Question 2

Identify the element with the ground state electron configuration 1s22s22p63s23p6.

Accepted Answer

A) argon,Ar 
B) calcium ion,Ca2+ 
C) chlorine,Cl 
D) krypton,Kr 
E) potassium ion,K+ 
A) argon,Ar 
B) calcium ion,Ca2+ 
C) chlorine,Cl 
D) krypton,Kr 
E) potassium ion,K+

Question 3

When two electrons occupy the same orbital they have paired spins-that is,the spins are opposite in direction.

Accepted Answer

A) True 
 B)False

Question 4

Protons and electrons reside in the nucleus of an atom.

Accepted Answer

A) True 
 B)False

Question 5

All elements have at least two naturally occurring isotopes.

Accepted Answer

A) True 
 B)False

Question 6

Which atom has the largest atomic radius?

Accepted Answer

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

Question 7

The electron cloud contains most of the volume of an atom.

Accepted Answer

A) True 
 B)False

Question 8

The element symbol for manganese is ________.

Accepted Answer

A) M 
B) Ma 
C) Mg 
D) Mn 
A) M 
B) Ma 
C) Mg 
D) Mn

Question 9

The atomic weight of an element is the sum of the masses of the naturally occurring isotopes of the element.

Accepted Answer

A) True 
 B)False

Question 10

Helium is an s block element.

Accepted Answer

A) True 
 B)False

Question 11

How many electrons are in the isotope   ?

Accepted Answer

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

Question 12

An iodine atom is larger than both a krypton atom and a tellurium atom.

Accepted Answer

A) True 
 B)False

Question 13

Zirconium (Zr)is an element classified as a metal. Which property cannot be assumed based on its classification as a metal?

Accepted Answer

A) Zr has a relatively high density 
B) Zr is a trace element in the body 
C) Zr is a good conductor of electricity 
D) Zr is a shiny solid 
A) Zr has a relatively high density 
B) Zr is a trace element in the body 
C) Zr is a good conductor of electricity 
D) Zr is a shiny solid

Question 14

When orbitals are equal in energy,one electron is added to each orbital until the orbitals are half-filled,before any orbital is completely filled.

Accepted Answer

A) True 
 B)False

Question 15

The active ingredient in the drug Fosamax is a compound with the chemical formula C4H18NNaO10P2. Which statement concerning the chemical formula of this compound is FALSE?

Accepted Answer

A) Atoms of six different elements make up this compound. 
B) Carbon,hydrogen,nitrogen,sodium,oxygen,and potassium atoms are present in this compound. 
C) The ratio of carbon atoms to oxygen atoms is 4:10. 
D) There is only one atom of nitrogen present in this compound. 
A) Atoms of six different elements make up this compound. 
B) Carbon,hydrogen,nitrogen,sodium,oxygen,and potassium atoms are present in this compound. 
C) The ratio of carbon atoms to oxygen atoms is 4:10. 
D) There is only one atom of nitrogen present in this compound.

Question 16

Which element is a metalloid?

Accepted Answer

A) B 
B) C 
C) Ar 
D) Al 
A) B 
B) C 
C) Ar 
D) Al

Question 17

Iodine has smaller ionization energy than chlorine.

Accepted Answer

A) True 
 B)False

Question 18

Hydrogen is located in group 1A but it is not considered an alkali metal.

Accepted Answer

A) True 
 B)False

Question 19

Which element is chemically similar to lithium?

Accepted Answer

A) Sulfur 
B) Magnesium 
C) Iron 
D) Lanthanum 
E) Potassium 
A) Sulfur 
B) Magnesium 
C) Iron 
D) Lanthanum 
E) Potassium

Question 20

Which element is located in period 3,Group 3A?

Accepted Answer

A) Al 
B) S 
C) Si 
D) B 
A) Al 
B) S 
C) Si 
D) B

Exam 2: Atoms and the Periodic Table

Antimony is a metalloid containing 51 protons that is alloyed with lead and used in car batteries. What is the element symbol for antimony?

Identify the element with the ground state electron configuration 1s22s22p63s23p6.

When two electrons occupy the same orbital they have paired spins-that is,the spins are opposite in direction.

Protons and electrons reside in the nucleus of an atom.

All elements have at least two naturally occurring isotopes.

Which atom has the largest atomic radius?

The electron cloud contains most of the volume of an atom.

The element symbol for manganese is ________.

The atomic weight of an element is the sum of the masses of the naturally occurring isotopes of the element.

Helium is an s block element.

How many electrons are in the isotope ?

An iodine atom is larger than both a krypton atom and a tellurium atom.

Zirconium (Zr)is an element classified as a metal. Which property cannot be assumed based on its classification as a metal?

When orbitals are equal in energy,one electron is added to each orbital until the orbitals are half-filled,before any orbital is completely filled.

The active ingredient in the drug Fosamax is a compound with the chemical formula C4H18NNaO10P2. Which statement concerning the chemical formula of this compound is FALSE?

Which element is a metalloid?

Iodine has smaller ionization energy than chlorine.

Hydrogen is located in group 1A but it is not considered an alkali metal.

Which element is chemically similar to lithium?

Which element is located in period 3,Group 3A?

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

Identify the element with the ground state electron configuration 1s²2s²2p⁶3s²3p⁶.

The active ingredient in the drug Fosamax is a compound with the chemical formula C₄H₁₈NNaO₁₀P₂. Which statement concerning the chemical formula of this compound is FALSE?