Question 1

Copper (Cu) is a transition metal.

Accepted Answer

A) True 
 B)False  True

Question 2

Determine the number of protons and identify the correct symbol for an atom with 20 neutrons and 20 electrons.

Accepted Answer

A) 20 protons,   
B) 20 protons,   
C) 20 protons,   
D) 40 protons,   
E) 40 protons,     
A) 20 protons,   
B) 20 protons,   
C) 20 protons,   
D) 40 protons,   
E) 40 protons,     B

Question 3

How many neutrons are there in an atom of lead whose mass number is 208?

Accepted Answer

A) 82 
B) 126 
C) 208 
D) 290 
E) none of them 
A) 82 
B) 126 
C) 208 
D) 290 
E) none of them B

Question 4

Atoms of the same element with different mass numbers are called

Accepted Answer

A) ions. 
B) neutrons. 
C) chemical groups. 
D) chemical families. 
E) isotopes. 
A) ions. 
B) neutrons. 
C) chemical groups. 
D) chemical families. 
E) isotopes.

Question 5

Which of the following is a metalloid?

Accepted Answer

A) Carbon, C, Z = 6 
B) Sulfur, S, Z = 16 
C) Germanium, Ge, Z = 32 
D) Iridium, Ir, Z = 77 
E) Bromine, Br, Z = 35 
A) Carbon, C, Z = 6 
B) Sulfur, S, Z = 16 
C) Germanium, Ge, Z = 32 
D) Iridium, Ir, Z = 77 
E) Bromine, Br, Z = 35

Question 6

Give the number of protons (p), electrons (e), and neutrons (n) in one atom of chlorine-37.

Accepted Answer

A) 37 p, 37 e, 17 n 
B) 17 p, 17 e, 37 n 
C) 17 p, 17 e, 20 n 
D) 37 p, 17 e, 20 n 
E) 17 p, 37 e, 17 n 
A) 37 p, 37 e, 17 n 
B) 17 p, 17 e, 37 n 
C) 17 p, 17 e, 20 n 
D) 37 p, 17 e, 20 n 
E) 17 p, 37 e, 17 n

Question 7

Rutherford's experiment with alpha particle scattering by gold foil established that

Accepted Answer

A) protons are not evenly distributed throughout an atom. 
B) electrons have a negative charge. 
C) electrons have a positive charge. 
D) atoms are made of protons, neutrons, and electrons. 
E) protons are 1840 times heavier than electrons. 
A) protons are not evenly distributed throughout an atom. 
B) electrons have a negative charge. 
C) electrons have a positive charge. 
D) atoms are made of protons, neutrons, and electrons. 
E) protons are 1840 times heavier than electrons.

Question 8

Which of these elements is chemically similar to potassium?

Accepted Answer

A) calcium 
B) arsenic 
C) phosphorus 
D) cerium 
E) cesium 
A) calcium 
B) arsenic 
C) phosphorus 
D) cerium 
E) cesium

Question 9

Which of these elements is chemically similar to oxygen?

Accepted Answer

A) Sulfur 
B) Calcium 
C) Iron 
D) Nickel 
E) Potassium 
A) Sulfur 
B) Calcium 
C) Iron 
D) Nickel 
E) Potassium

Question 10

Who is credited with discovering the atomic nucleus?

Accepted Answer

A) Dalton 
B) Gay-Lussac 
C) Thomson 
D) Chadwick 
E) Rutherford 
A) Dalton 
B) Gay-Lussac 
C) Thomson 
D) Chadwick 
E) Rutherford

Question 11

Which element would be expected to have properties similar to antimony?

Accepted Answer

A) Se 
B) Sn 
C) P 
D) As 
E) Pb 
A) Se 
B) Sn 
C) P 
D) As 
E) Pb

Question 12

In what groups are transition metals located?

Accepted Answer

A) 1A, 7A, and 1B 
B) 2A, 4A, and 7A 
C) 1B through 8B 
D) 2B and 3B through 6B 
E) 3A through 6A 
A) 1A, 7A, and 1B 
B) 2A, 4A, and 7A 
C) 1B through 8B 
D) 2B and 3B through 6B 
E) 3A through 6A

Question 13

Lead (Pb) is a main group element.

Accepted Answer

A) True 
 B)False

Question 14

The elements in Group 7A are known by what name?

Accepted Answer

A) Transition metals 
B) Halogens 
C) Alkali metals 
D) Alkaline earth metals 
E) Noble gases 
A) Transition metals 
B) Halogens 
C) Alkali metals 
D) Alkaline earth metals 
E) Noble gases

Question 15

Which of these elements exhibits chemical behavior similar to that of silver?

Accepted Answer

A) nickel 
B) gold 
C) sulfur 
D) chlorine 
E) iron 
A) nickel 
B) gold 
C) sulfur 
D) chlorine 
E) iron

Question 16

Which one of these elements is a transition element?

Accepted Answer

A) Sr 
B) Pb 
C) As 
D) Fe 
E) H 
A) Sr 
B) Pb 
C) As 
D) Fe 
E) H

Question 17

Which isotope is not possible?

Accepted Answer

A)    
B)    
C)    
D)    
E) All of these isotopes are possible. 
A)    
B)    
C)    
D)    
E) All of these isotopes are possible.

Question 18

What is a unifying principle that explains a body of experimental observations?

Accepted Answer

A) Law 
B) Hypothesis 
C) Theory 
D) Phenomena 
E) Prediction 
A) Law 
B) Hypothesis 
C) Theory 
D) Phenomena 
E) Prediction

Question 19

Which element would be expected to have properties similar to argon?

Accepted Answer

A) F 
B) Cl 
C) H 
D) Br 
E) Kr 
A) F 
B) Cl 
C) H 
D) Br 
E) Kr

Question 20

What is the term for the number of protons in the nucleus of each atom of an element? It also indicates the number of electrons in the atom.

Accepted Answer

A) Isotope number 
B) Mass number 
C) Mass-to-charge ratio 
D) Atomic number 
E) Atomic mass units 
A) Isotope number 
B) Mass number 
C) Mass-to-charge ratio 
D) Atomic number 
E) Atomic mass units

Copper (Cu) is a transition metal.

Determine the number of protons and identify the correct symbol for an atom with 20 neutrons and 20 electrons.

How many neutrons are there in an atom of lead whose mass number is 208?

Atoms of the same element with different mass numbers are called

Which of the following is a metalloid?

Give the number of protons (p), electrons (e), and neutrons (n) in one atom of chlorine-37.

Rutherford's experiment with alpha particle scattering by gold foil established that

Which of these elements is chemically similar to potassium?

Which of these elements is chemically similar to oxygen?

Who is credited with discovering the atomic nucleus?

Which element would be expected to have properties similar to antimony?

In what groups are transition metals located?

Lead (Pb) is a main group element.

The elements in Group 7A are known by what name?

Which of these elements exhibits chemical behavior similar to that of silver?

Which one of these elements is a transition element?

Which isotope is not possible?

What is a unifying principle that explains a body of experimental observations?

Which element would be expected to have properties similar to argon?

What is the term for the number of protons in the nucleus of each atom of an element? It also indicates the number of electrons in the atom.

Electrons and the Periodic Table

Compounds and Chemical Bonds

How Chemists Use Numbers

The Mole and Chemical Formulas

Molecular Shape

Solids, Liquids, and Phase Changes

Gases

Physical Properties of Solutions

Chemical Reactions and Chemical Equations

Using Balanced Chemical Equations

Acids and Bases

Equilibrium

Organic Chemistry

Biochemistry

Nuclear Chemistry

Electrochemistry

Filters

Exam 1: Atoms and Elements

Copper (Cu) is a transition metal.

Determine the number of protons and identify the correct symbol for an atom with 20 neutrons and 20 electrons.

How many neutrons are there in an atom of lead whose mass number is 208?

Atoms of the same element with different mass numbers are called

Which of the following is a metalloid?

Give the number of protons (p), electrons (e), and neutrons (n) in one atom of chlorine-37.

Rutherford's experiment with alpha particle scattering by gold foil established that

Which of these elements is chemically similar to potassium?

Which of these elements is chemically similar to oxygen?

Who is credited with discovering the atomic nucleus?

Which element would be expected to have properties similar to antimony?

In what groups are transition metals located?

Lead (Pb) is a main group element.

The elements in Group 7A are known by what name?

Which of these elements exhibits chemical behavior similar to that of silver?

Which one of these elements is a transition element?

Which isotope is not possible?

What is a unifying principle that explains a body of experimental observations?

Which element would be expected to have properties similar to argon?

What is the term for the number of protons in the nucleus of each atom of an element? It also indicates the number of electrons in the atom.

Electrons and the Periodic Table

Compounds and Chemical Bonds

How Chemists Use Numbers

The Mole and Chemical Formulas

Molecular Shape

Solids, Liquids, and Phase Changes

Gases

Physical Properties of Solutions

Chemical Reactions and Chemical Equations

Using Balanced Chemical Equations

Acids and Bases

Equilibrium

Organic Chemistry

Biochemistry

Nuclear Chemistry

Electrochemistry

Filters