Question 1

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 2

Which of the following elements is a metal?

Accepted Answer

A) nitrogen 
B) fluorine 
C) argon 
D) strontium 
E) phosphorus 
A) nitrogen 
B) fluorine 
C) argon 
D) strontium 
E) phosphorus

Question 3

A lead atom with a mass number of 208 has 126 neutrons.

Accepted Answer

A) True 
 B)False

Question 4

Iodine is a metal.

Accepted Answer

A) True 
 B)False

Question 5

potassium

Accepted Answer

A) P 
B) Po 
C) Pt 
D) K 
E) Ko 
A) P 
B) Po 
C) Pt 
D) K 
E) Ko

Question 6

aluminum

Accepted Answer

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

Question 7

The symbol for potassium is P.

Accepted Answer

A) True 
 B)False

Question 8

The symbol for gold is Au.

Accepted Answer

A) True 
 B)False

Question 9

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 10

silver

Accepted Answer

A) S 
B) Si 
C) Ag 
D) Au 
E) AG 
A) S 
B) Si 
C) Ag 
D) Au 
E) AG

Question 11

Ionization energy is ________.

Accepted Answer

A) the energy an ion acquires from an electron 
B) the energy needed to remove the least tightly bound electron 
C) highest for metals in Group 1A (1) 
D) higher for potassium than for lithium 
E) none of the above 
A) the energy an ion acquires from an electron 
B) the energy needed to remove the least tightly bound electron 
C) highest for metals in Group 1A (1) 
D) higher for potassium than for lithium 
E) none of the above

Question 12

What is the electron arrangement for aluminum?

Accepted Answer

A) 2,8,3 
B) 2,8,5 
C) 2,8,7 
D) 2,8,8 
E) 2,8,10 
A) 2,8,3 
B) 2,8,5 
C) 2,8,7 
D) 2,8,8 
E) 2,8,10

Question 13

iron

Accepted Answer

A) Ir 
B) Fs 
C) Fe 
D) In 
E) FE 
A) Ir 
B) Fs 
C) Fe 
D) In 
E) FE

Question 14

Sulfur has 16 valence electrons.

Accepted Answer

A) True 
 B)False

Question 15

A sample of chlorine has two naturally occurring isotopes.The isotope Cl-35 makes up 75.8% of the sample,and the isotope Cl-37 makes up 24.3% of the sample.Which of the following statements is true?

Accepted Answer

A) The atomic mass of chlorine will be less than 35. 
B) The atomic mass of chlorine will be more than 37. 
C) You cannot tell what the atomic mass will be. 
D) The atomic mass will be between 35 and 37. 
E) The atomic mass will be 24.3. 
A) The atomic mass of chlorine will be less than 35. 
B) The atomic mass of chlorine will be more than 37. 
C) You cannot tell what the atomic mass will be. 
D) The atomic mass will be between 35 and 37. 
E) The atomic mass will be 24.3.

Question 16

Radon is a metal.

Accepted Answer

A) True 
 B)False

Question 17

Match between columns
                        Premises: cobalt
chlorine
phosphorus
sulfur
potassium
germanium
nickel

Accepted Answer

The Answer of metalloid and nonmetal and metal is...

Question 18

Write the electron arrangement for the atom shown.
-Magnesium

Accepted Answer

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

Question 19

Which element would have physical and chemical properties similar to chlorine?

Accepted Answer

A) Ar 
B) Br 
C) S 
D) O 
E) P 
A) Ar 
B) Br 
C) S 
D) O 
E) P

Question 20

What is the element with the electron arrangement 2,8,7?

Accepted Answer

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

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

Which of the following elements is a metal?

A lead atom with a mass number of 208 has 126 neutrons.

Iodine is a metal.

potassium

aluminum

The symbol for potassium is P.

The symbol for gold is Au.

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

silver

Ionization energy is ________.

What is the electron arrangement for aluminum?

iron

Sulfur has 16 valence electrons.

A sample of chlorine has two naturally occurring isotopes.The isotope Cl-35 makes up 75.8% of the sample,and the isotope Cl-37 makes up 24.3% of the sample.Which of the following statements is true?

Radon is a metal.

Write the electron arrangement for the atom shown. -Magnesium

Which element would have physical and chemical properties similar to chlorine?

What is the element with the electron arrangement 2,8,7?

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

Exam 4: Atoms and Elements

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

Which of the following elements is a metal?

A lead atom with a mass number of 208 has 126 neutrons.

Iodine is a metal.

potassium

aluminum

The symbol for potassium is P.

The symbol for gold is Au.

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

silver

Ionization energy is ________.

What is the electron arrangement for aluminum?

iron

Sulfur has 16 valence electrons.

A sample of chlorine has two naturally occurring isotopes.The isotope Cl-35 makes up 75.8% of the sample,and the isotope Cl-37 makes up 24.3% of the sample.Which of the following statements is true?

Radon is a metal.

Write the electron arrangement for the atom shown. -Magnesium

Which element would have physical and chemical properties similar to chlorine?

What is the element with the electron arrangement 2,8,7?

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