Question 1

Which of the following properties is not a characteristic of the Group 1A (1)elements (alkali metals)?

Accepted Answer

A) They are shiny. 
B) They are good conductors of heat. 
C) They react vigorously with water. 
D) Most of them are liquids at room temperature. 
E) They are good conductors of electricity. 
A) They are shiny. 
B) They are good conductors of heat. 
C) They react vigorously with water. 
D) Most of them are liquids at room temperature. 
E) They are good conductors of electricity.

Question 2

The metallic character of elements ________.

Accepted Answer

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

Question 3

The metallic character of elements ________.

Accepted Answer

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

Question 4

The element in this list with chemical properties similar to magnesium is ________.

Accepted Answer

A) sodium 
B) boron 
C) carbon 
D) strontium 
E) chlorine 
A) sodium 
B) boron 
C) carbon 
D) strontium 
E) chlorine

Question 5

A calcium atom two electrons in the fourth energy level.

Accepted Answer

A) True 
 B)False

Question 6

Which of the following is a characteristic of the modern periodic table?

Accepted Answer

A) A group is a horizontal row on the periodic table. 
B) A period is a column on the periodic table. 
C) The elements in each group have similar chemical properties. 
D) The B groups contain the representative elements. 
E) The A groups contain the transition elements. 
A) A group is a horizontal row on the periodic table. 
B) A period is a column on the periodic table. 
C) The elements in each group have similar chemical properties. 
D) The B groups contain the representative elements. 
E) The A groups contain the transition elements.

Question 7

The atomic number is equal to the number of protons.

Accepted Answer

A) True 
 B)False

Question 8

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 9

Match between columns
                        Premises: sodium
argon
magnesium
copper
bromine

Accepted Answer

The Answer of transition element and alkali metal and halogen is...

Question 10

The primary substances of which all other things are composed are ________.

Accepted Answer

A) molecules 
B) compounds 
C) elements 
D) electrons 
E) protons 
A) molecules 
B) compounds 
C) elements 
D) electrons 
E) protons

Question 11

sodium

Accepted Answer

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

Question 12

The symbol for mercury is Mg.

Accepted Answer

A) True 
 B)False

Question 13

In an atom,the nucleus contains ________.

Accepted Answer

A) an equal number of protons and electrons 
B) all the protons and neutrons 
C) all the protons and electrons 
D) only neutrons 
E) only protons 
A) an equal number of protons and electrons 
B) all the protons and neutrons 
C) all the protons and electrons 
D) only neutrons 
E) only protons

Question 14

The number of neutrons in an atom is equal to ________.

Accepted Answer

A) the atomic number 
B) the mass number 
C) the mass number + the atomic number 
D) the mass number - the atomic number 
E) the number of protons 
A) the atomic number 
B) the mass number 
C) the mass number + the atomic number 
D) the mass number - the atomic number 
E) the number of protons

Question 15

What is the mass number of an atom of potassium that has 20 neutrons?

Accepted Answer

A) 15 
B) 19 
C) 35 
D) 39 
E) 59 
A) 15 
B) 19 
C) 35 
D) 39 
E) 59

Question 16

Write the symbol from the element name.
-The symbol for silver is ________.

Accepted Answer

The answer of Write the symbol from the element name.
-The...

Question 17

The number of electrons in the outer energy level of a neutral atom of boron (atomic number 5)is ________.

Accepted Answer

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

Question 18

How many valence electrons are in the electron-dot symbols for the elements in group 3A (13)?

Accepted Answer

A) 1 
B) 2 
C) 3 
D) 4 
E) 6 
A) 1 
B) 2 
C) 3 
D) 4 
E) 6

Question 19

The atomic number of sodium is 23.

Accepted Answer

A) True 
 B)False

Question 20

mercury

Accepted Answer

A) Mr 
B) Na 
C) Au 
D) Hg 
E) Ag 
A) Mr 
B) Na 
C) Au 
D) Hg 
E) Ag

Which of the following properties is not a characteristic of the Group 1A (1)elements (alkali metals)?

The metallic character of elements ________.

The metallic character of elements ________.

The element in this list with chemical properties similar to magnesium is ________.

A calcium atom two electrons in the fourth energy level.

Which of the following is a characteristic of the modern periodic table?

The atomic number is equal to the number of protons.

Which of the following is a characteristic of nonmetals?

The primary substances of which all other things are composed are ________.

sodium

The symbol for mercury is Mg.

In an atom,the nucleus contains ________.

The number of neutrons in an atom is equal to ________.

What is the mass number of an atom of potassium that has 20 neutrons?

Write the symbol from the element name. -The symbol for silver is ________.

The number of electrons in the outer energy level of a neutral atom of boron (atomic number 5)is ________.

How many valence electrons are in the electron-dot symbols for the elements in group 3A (13)?

The atomic number of sodium is 23.

mercury

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Exam 4: Atoms and Elements

Which of the following properties is not a characteristic of the Group 1A (1)elements (alkali metals)?

The metallic character of elements ________.

The metallic character of elements ________.

The element in this list with chemical properties similar to magnesium is ________.

A calcium atom two electrons in the fourth energy level.

Which of the following is a characteristic of the modern periodic table?

The atomic number is equal to the number of protons.

Which of the following is a characteristic of nonmetals?

The primary substances of which all other things are composed are ________.

sodium

The symbol for mercury is Mg.

In an atom,the nucleus contains ________.

The number of neutrons in an atom is equal to ________.

What is the mass number of an atom of potassium that has 20 neutrons?

Write the symbol from the element name. -The symbol for silver is ________.

The number of electrons in the outer energy level of a neutral atom of boron (atomic number 5)is ________.

How many valence electrons are in the electron-dot symbols for the elements in group 3A (13)?

The atomic number of sodium is 23.

mercury

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