Question 1

The total number of oxygen atoms indicated by the formula Cu3(PO4)2 is

Accepted Answer

A)  8 
B)  4 
C)  12 
D)  16 
E)  11 
A)  8 
B)  4 
C)  12 
D)  16 
E)  11

Question 2

How many protons, electrons, and neutrons, respectively, does   have?

Accepted Answer

A)  8, 18, 8 
B)  8, 8, 8 
C)  8, 10, 8 
D)  8, 14, 8 
E)  8, 18, 16 
A)  8, 18, 8 
B)  8, 8, 8 
C)  8, 10, 8 
D)  8, 14, 8 
E)  8, 18, 16

Question 3

Which of the following does Dalton's Atomic Theory not address?

Accepted Answer

A)  Hydrogen and oxygen gas combine to form water. 
B)  H2O2 consists of 16 g of oxygen for every 1 g of hydrogen. 
C)  The seat you are sitting on is made up of atoms. 
D)  Hydrogen ignites in an open flame but helium does not. 
E)  The relative mass of a carbon atom is about 12 times that of hydrogen. 
A)  Hydrogen and oxygen gas combine to form water. 
B)  H2O2 consists of 16 g of oxygen for every 1 g of hydrogen. 
C)  The seat you are sitting on is made up of atoms. 
D)  Hydrogen ignites in an open flame but helium does not. 
E)  The relative mass of a carbon atom is about 12 times that of hydrogen.

Question 4

The symbol for the element iodine is

Accepted Answer

A)  Io 
B)  In 
C)  Id 
D)  I 
E)  Ie 
A)  Io 
B)  In 
C)  Id 
D)  I 
E)  Ie

Question 5

Si is the symbol for

Accepted Answer

A)  silver 
B)  silicon 
C)  selenium 
D)  sodium 
E)  sulfur 
A)  silver 
B)  silicon 
C)  selenium 
D)  sodium 
E)  sulfur

Question 6

Co is the symbol for

Accepted Answer

A)  carbon 
B)  cobalt 
C)  carbon monoxide 
D)  carboxide 
E)  chlorine 
A)  carbon 
B)  cobalt 
C)  carbon monoxide 
D)  carboxide 
E)  chlorine

Question 7

What is the most abundant element in the human body?

Accepted Answer

A)  carbon 
B)  hydrogen 
C)  calcium 
D)  oxygen 
E)  water 
A)  carbon 
B)  hydrogen 
C)  calcium 
D)  oxygen 
E)  water

Question 8

The symbol Fe stands for the element

Accepted Answer

A)  francium 
B)  fluorine 
C)  fermium 
D)  tin 
E)  iron 
A)  francium 
B)  fluorine 
C)  fermium 
D)  tin 
E)  iron

Question 9

How many protons, electrons, and neutrons, respectively, does 31P have?

Accepted Answer

A)  15, 15, 16 
B)  15, 16, 15 
C)  16, 15, 31 
D)  15, 15, 31 
E)  15, 31, 16 
A)  15, 15, 16 
B)  15, 16, 15 
C)  16, 15, 31 
D)  15, 15, 31 
E)  15, 31, 16

Question 10

Write the symbol for lead. ______________

Accepted Answer

The answer of Write the symbol for lead. ______________...

Question 11

Write the symbol for cobalt. ______________

Accepted Answer

The answer of Write the symbol for cobalt. ______________...

Question 12

Which of the following is a nonmetal?

Accepted Answer

A)  cerium 
B)  cesium 
C)  carbon 
D)  calcium 
E)  copper 
A)  cerium 
B)  cesium 
C)  carbon 
D)  calcium 
E)  copper

Question 13

How many protons are there in an atom of   ?

Accepted Answer

A)  92 
B)  237 
C)  145 
D)  329 
E)  Cannot tell from information given 
A)  92 
B)  237 
C)  145 
D)  329 
E)  Cannot tell from information given

Question 14

The number of protons in the nucleus of an atom is called its

Accepted Answer

A)  mass number 
B)  valence 
C)  isotope number 
D)  atomic number 
E)  none of these 
A)  mass number 
B)  valence 
C)  isotope number 
D)  atomic number 
E)  none of these

Question 15

How many phosphorus atoms are represented by one formula unit of cobalt(II) phosphate, Co3(PO4)2?

Accepted Answer

A)  2 
B)  4 
C)  6 
D)  8 
E)  1 
A)  2 
B)  4 
C)  6 
D)  8 
E)  1

Question 16

How many atoms of oxygen are in one formula unit of calcium dihydrogen phosphate?

Accepted Answer

A)  8 
B)  4 
C)  6 
D)  9 
E)  7 
A)  8 
B)  4 
C)  6 
D)  9 
E)  7

Question 17

Four of the most important elements on this planet are hydrogen, oxygen, carbon, and nitrogen. Give the symbol for each of these elements.
a. hydrogen ______________
b. oxygen ______________
c. carbon ______________
d. nitrogen ______________

Accepted Answer

The answer of Four of the most important elements on...

Question 18

How many neutrons are present in a   nucleus?

Accepted Answer

A)  91 
B)  142 
C)  233 
D)  324 
E)  none of these 
A)  91 
B)  142 
C)  233 
D)  324 
E)  none of these

Question 19

Which of these are isotopes of hydrogen?

Accepted Answer

A)  "12C and 13C" 
B)  "2H and He" 
C)  "42K and 40K" 
D)  "3H and 2H" 
E)  "Li+ and He" 
A)  "12C and 13C" 
B)  "2H and He" 
C)  "42K and 40K" 
D)  "3H and 2H" 
E)  "Li+ and He"

Question 20

Which of the following elements is most similar to chlorine?

Accepted Answer

A)  H 
B)  He 
C)  Na 
D)  Hg 
E)  Br 
A)  H 
B)  He 
C)  Na 
D)  Hg 
E)  Br

Exam 4: Chemical Foundations: Elements, Atoms, and Ions

The total number of oxygen atoms indicated by the formula Cu3(PO4)2 is

How many protons, electrons, and neutrons, respectively, does have?

Which of the following does Dalton's Atomic Theory not address?

The symbol for the element iodine is

Si is the symbol for

Co is the symbol for

What is the most abundant element in the human body?

The symbol Fe stands for the element

How many protons, electrons, and neutrons, respectively, does 31P have?

Write the symbol for lead. ______________

Write the symbol for cobalt. ______________

Which of the following is a nonmetal?

How many protons are there in an atom of ?

The number of protons in the nucleus of an atom is called its

How many phosphorus atoms are represented by one formula unit of cobalt(II) phosphate, Co3(PO4)2?

How many atoms of oxygen are in one formula unit of calcium dihydrogen phosphate?

Four of the most important elements on this planet are hydrogen, oxygen, carbon, and nitrogen. Give the symbol for each of these elements. a. hydrogen ______________ b. oxygen ______________ c. carbon ______________ d. nitrogen ______________

How many neutrons are present in a nucleus?

Which of these are isotopes of hydrogen?

Which of the following elements is most similar to chlorine?

Chemistry: an Introduction

Measurements and Calculations

Matter

Nomenclature

Chemical Reactions: an Introduction

Reactions in Aqueous Solutions

Chemical Composition

Chemical Quantities

Energy

Modern Atomic Theory

Chemical Bonding

Gases

Liquids and Solids

Solutions

Acids and Bases

Equilibrium

Oxidation-Reduction Reactions and Electrochemistry

Radioactivity and Nuclear Energy

Organic Chemistry

Biochemistry

Filters

The total number of oxygen atoms indicated by the formula Cu₃(PO₄)₂ is

How many protons, electrons, and neutrons, respectively, does ³¹P have?

How many phosphorus atoms are represented by one formula unit of cobalt(II) phosphate, Co₃(PO₄)₂?

Four of the most important elements on this planet are hydrogen, oxygen, carbon, and nitrogen. Give the symbol for each of these elements. a. hydrogen b. oxygen c. carbon d. nitrogen