Question 1

A copper atom with 30 neutrons has a mass number of 59.

Accepted Answer

A) True 
 B)False

Question 2

Write the electron arrangement for the atom shown.
-The symbol for tin is ________.

Accepted Answer

The answer of Write the electron arrangement for the atom...

Question 3

The mass number is equal to the number of electrons.

Accepted Answer

A) True 
 B)False

Question 4

The elements sodium,magnesium,and silicon ________.

Accepted Answer

A) are isotopes of each other 
B) are in the same period of elements 
C) have the same number of neutrons 
D) are in the same group 
E) have the same mass number 
A) are isotopes of each other 
B) are in the same period of elements 
C) have the same number of neutrons 
D) are in the same group 
E) have the same mass number

Question 5

Pb is the symbol for ________.

Accepted Answer

A) lead 
B) silver 
C) plumbium 
D) potassium 
E) mercury 
A) lead 
B) silver 
C) plumbium 
D) potassium 
E) mercury

Question 6

What is the symbol of the element in Group 4A (14)and Period 2?

Accepted Answer

A) Be 
B) Mg 
C) Ca 
D) C 
E) Si 
A) Be 
B) Mg 
C) Ca 
D) C 
E) Si

Question 7

Write the electron arrangement for the atom shown.
-Sulfur

Accepted Answer

The answer of Write the electron arrangement for the atom...

Question 8

The symbol for sodium is So.

Accepted Answer

A) True 
 B)False

Question 9

The atomic size of atoms ________.

Accepted Answer

A) increases going across a period 
B) decreases going across a period 
C) decreases going down within a group 
D) does not change going across a period 
E) none of the above 
A) increases going across a period 
B) decreases going across a period 
C) decreases going down within a group 
D) does not change going across a period 
E) none of the above

Question 10

Which of the following is not true for the atoms 13N,14N,and 15N?

Accepted Answer

A) They all have the same mass number. 
B) They are isotopes. 
C) They all have the same atomic number. 
D) They all have 7 protons. 
E) They all have 7 electrons. 
A) They all have the same mass number. 
B) They are isotopes. 
C) They all have the same atomic number. 
D) They all have 7 protons. 
E) They all have 7 electrons.

Question 11

Iodine is a metal.

Accepted Answer

A) True 
 B)False

Question 12

Which of the following is a characteristic of nonmetals?

Accepted Answer

A) shiny 
B) malleable 
C) good conductors of heat 
D) low melting points 
E) good conductors of electricity 
A) shiny 
B) malleable 
C) good conductors of heat 
D) low melting points 
E) good conductors of electricity

Question 13

Mercury is a metal.

Accepted Answer

A) True 
 B)False

Question 14

The maximum number of electrons that may occupy the third electron energy level is ________.

Accepted Answer

A) 2 
B) 8 
C) 10 
D) 18 
E) 32 
A) 2 
B) 8 
C) 10 
D) 18 
E) 32

Question 15

The proton is 2000 times the mass of the neutron.

Accepted Answer

A) True 
 B)False

Question 16

An argon atom 18 electrons in the third energy level.

Accepted Answer

A) True 
 B)False

Question 17

Select the correct symbol for the element aluminum.

Accepted Answer

A) Al 
B) Am 
C) Au 
D) Sn 
E) Ag 
A) Al 
B) Am 
C) Au 
D) Sn 
E) Ag

Question 18

The number of dots in the electron dot symbol of carbon is ________.

Accepted Answer

A) one 
B) two 
C) three 
D) four 
E) five 
A) one 
B) two 
C) three 
D) four 
E) five

Question 19

Ionization energy increases going down a group.

Accepted Answer

A) True 
 B)False

Question 20

Select the correct symbol for the element sodium.

Accepted Answer

A) So 
B) Na 
C) No 
D) Sm 
E) Au 
A) So 
B) Na 
C) No 
D) Sm 
E) Au

A copper atom with 30 neutrons has a mass number of 59.

Write the electron arrangement for the atom shown. -The symbol for tin is ________.

The mass number is equal to the number of electrons.

The elements sodium,magnesium,and silicon ________.

Pb is the symbol for ________.

What is the symbol of the element in Group 4A (14)and Period 2?

Write the electron arrangement for the atom shown. -Sulfur

The symbol for sodium is So.

The atomic size of atoms ________.

Which of the following is not true for the atoms 13N,14N,and 15N?

Iodine is a metal.

Which of the following is a characteristic of nonmetals?

Mercury is a metal.

The maximum number of electrons that may occupy the third electron energy level is ________.

The proton is 2000 times the mass of the neutron.

An argon atom 18 electrons in the third energy level.

Select the correct symbol for the element aluminum.

The number of dots in the electron dot symbol of carbon is ________.

Ionization energy increases going down a group.

Select the correct symbol for the element sodium.

Chemistry in Our Lives

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Matter and Energy

Nuclear Chemistry

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Acids and Bases and Equilibrium

Introduction to Organic Chemistry: Hydrocarbons

Alcohols, thiols, ethers, aldehydes, and Ketones

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Exam 4: Atoms and Elements

A copper atom with 30 neutrons has a mass number of 59.

Write the electron arrangement for the atom shown. -The symbol for tin is ________.

The mass number is equal to the number of electrons.

The elements sodium,magnesium,and silicon ________.

Pb is the symbol for ________.

What is the symbol of the element in Group 4A (14)and Period 2?

Write the electron arrangement for the atom shown. -Sulfur

The symbol for sodium is So.

The atomic size of atoms ________.

Which of the following is not true for the atoms 13N,14N,and 15N?

Iodine is a metal.

Which of the following is a characteristic of nonmetals?

Mercury is a metal.

The maximum number of electrons that may occupy the third electron energy level is ________.

The proton is 2000 times the mass of the neutron.

An argon atom 18 electrons in the third energy level.

Select the correct symbol for the element aluminum.

The number of dots in the electron dot symbol of carbon is ________.

Ionization energy increases going down a group.

Select the correct symbol for the element sodium.

Chemistry in Our Lives

Chemistry and Measurement

Matter and Energy

Nuclear Chemistry

Ionic and Molecular Compounds

Chemical Quantities and Reactions

Gases

Solutions

Acids and Bases and Equilibrium

Introduction to Organic Chemistry: Hydrocarbons

Alcohols, thiols, ethers, aldehydes, and Ketones

Carbohydrates

Carboxylic Acids, esters, amines, and Amides

Lipids

Amino Acids, proteins, and Enzymes

Nucleic Acids and Protein Synthesis

Metabolic Pathways and Energy Production

Filters