Deck 4: Atoms and Elements

Question 1

Select the correct symbol for the element gold.

A)Go
B)Hg
C)Ag
D)Au
E)AU

Answer 1

Au

Question 2

The elements lithium,sodium,and potassium ________.

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

Answer 2

are in the same group

Question 3

Select the correct symbol for the element silver.

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

Answer 3

Ag

Question 4

Which of the following elements is a noble gas?

A)oxygen
B)chlorine
C)bromine
D)argon
E)nitrogen

Question 5

Which of the following elements is a metal?

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

Question 6

The Group 8A (18)elements ________.

A)are unreactive and are rarely found in combination with other elements
B)are good conductors of electricity
C)melt at high temperatures
D)are liquids at room temperature
E)react vigorously with water

Question 7

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

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 8

Select the correct symbol for the element sodium.

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

Question 9

What elements are in hydroxyapatite, OH,a major compound in human bones and teeth?

A)carbon,potassium,oxygen,hydrogen
B)calcium,phosphorous,oxygen,hydrogen
C)carbon,phosphorous,oxygen,helium
D)calcium,phosphorous,oxygen,helium
E)carbon,potassium,oxygen,helium

Question 10

Select the correct symbol for the element aluminum.

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

Question 11

Which of the following elements is a nonmetal?

A)nitrogen
B)sodium
C)iron
D)silver
E)calcium

Question 12

Select the correct symbol for the element potassium.

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

Question 13

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

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 14

Select the correct symbol for the element mercury.

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

Question 15

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

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

Question 16

Which of the following elements is a metalloid?

A)nitrogen
B)lithium
C)iron
D)gold
E)silicon

Question 17

Which of the following is a characteristic of nonmetals?

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

Question 18

Select the correct symbol for the element iron.

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

Question 19

Ca is the symbol for ________.

A)calcium
B)carbon
C)cobalt
D)copper
E)cadmium

Question 20

Pb is the symbol for ________.

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

Question 21

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

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

Question 22

Which of the following descriptions of a subatomic particle is correct?

A)A proton has a positive charge and a mass of approximately 1 amu.
B)An electron has a negative charge and a mass of approximately 1 amu.
C)A neutron has no charge and its mass is negligible.
D)A proton has a positive charge and a negligible mass.
E)A neutron has a positive charge and a mass of approximately 1 amu.

Question 23

Consider a neutral atom with 30 protons and 34 neutrons.The number of electrons in this atom is ________.

A)30
B)32
C)34
D)64
E)94

Question 24

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

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

Question 25

Consider an isotope of sodium with a mass number of 25.The number of neutrons in this isotope of sodium is ________.

A)11
B)14
C)16
D)25
E)32

Question 26

Consider a neutral atom with 30 protons and 34 neutrons.The mass number for this atom is ________.

A)30
B)32
C)34
D)64
E)94

Question 27

According to the atomic theory,________.

A)all atoms are different
B)atoms are neither created nor destroyed during a chemical reaction
C)atoms of the same element combine to form compounds
D)all matter is made up of tiny particles called electrons
E)a compound can contain different numbers of atoms as long as it has the same kinds of atoms

Question 28

Identify the noble gas in the following list.

A)helium
B)nitrogen
C)oxygen
D)gold
E)chlorine

Question 29

How many protons are in an isotope of sodium with a mass number of 25?

A)11
B)14
C)15
D)25
E)32

Question 30

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

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

Question 31

Identify the metalloid in the following list.

A)sulfur
B)fluorine
C)silver
D)copper
E)germanium

Question 32

In an atom,the nucleus contains ________.

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 33

Semiconductors are located in the periodic table on (or in)the ________.

A)left side of the table
B)right side of the table
C)line dividing metals from nonmetals in the table
D)first period of the table
E)last period of the table

Question 34

The mass number of an atom can be calculated from ________.

A)the number of electrons
B)the number of protons plus neutrons
C)the number of protons
D)the number of electrons plus protons
E)the number of neutrons

Question 35

The smallest particle of an element that retains the characteristics of the element is a(n)________.

A)electron
B)neutron
C)proton
D)atom
E)nucleus

Question 36

The elements sodium,magnesium,and silicon ________.

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 37

Consider a neutral atom with 30 protons and 34 neutrons.The atomic number of the element is ________.

A)30
B)32
C)34
D)64
E)94

Question 38

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

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

Question 39

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

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 40

The atomic number of an atom is equal to the number of ________.

A)nuclei
B)neutrons
C)neutrons plus protons
D)electrons plus protons
E)protons

Question 41

What is the electron arrangement for aluminum?

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

Question 42

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

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

Question 43

Valence electrons are electrons located ________.

A)in the outermost energy level of an atom
B)in the nucleus of an atom
C)in the innermost energy level of an atom
D)throughout the atom
E)in the first three shells of an atom

Question 44

What element has the electron arrangement 2,8,4?

A)carbon
B)oxygen
C)sulfur
D)iron
E)silicon

Question 45

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

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

Question 46

The number of electron energy levels in a magnesium atom is ________.

A)1
B)2
C)3
D)4
E)5

Question 47

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

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

Question 48

What is the electron arrangement for potassium (atomic number 19)?

A)2,8,9
B)2,8,7,2
C)2,10,7
D)2,8,8,1
E)2,8,6,3

Question 49

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?

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 50

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

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

Question 51

What is the correct electron arrangement for the lithium atom?

A)3
B)3,1
C)1,2
D)2,1
E)2,5

Question 52

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

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 53

The electron arrangement of any particular atom shows ________.

A)the number of isotopes possible
B)a description of the shape of each electron energy level
C)the number of electrons in each energy level
D)a diagram of an atomic nucleus
E)the maximum number of electrons each energy level can hold

Question 54

The correct symbol for the isotope of potassium with 22 neutrons is ________.

A) K
B) K
C) P
D) P
E) K

Question 55

In an electron-dot symbol of an element,the dots are used to represent ________.

A)all of the electrons in the atom
B)the valence electrons
C)the electron arrangement
D)only the electrons that will participate in bond formation
E)the electrons that the element will gain when it forms a compound

Question 56

Isotopes are atoms of the same element that have ________.

A)different atomic numbers
B)the same atomic numbers but different numbers of protons
C)the same atomic numbers but different numbers of electrons
D)the same atomic number but different numbers of neutrons
E)the same atomic mass but different numbers of protons

Question 57

The atomic mass of an element is equal to ________.

A)its mass number
B)its atomic number
C)one-twelfth of the mass of a carbon-12 atom
D)the mass of an "average atom"
E)the mass of the heaviest isotope

Question 58

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

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

Question 59

Which of the following gives the correct numbers of protons,neutrons,and electrons in a neutral atom of Sn?

A)118 protons,50 neutrons,118 electrons
B)118 protons,118 neutrons,50 electrons
C)50 protons,68 neutrons,50 electrons
D)68 protons,68 neutrons,50 electrons
E)50 protons,50 neutrons,50 electrons

Question 60

The number of valence electrons found in an atom of a Group A element is equal to ________.

A)its atomic number
B)its mass number
C)its group number
D)eight
E)eight minus the group number

Question 61

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

Question 62

Ionization energy is ________.

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 63

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

Question 64

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

Question 65

The ionization energy of atoms ________.

A)decreases 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 66

The metallic character of elements ________.

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 67

Write the electron arrangement for the atom shown.
Argon

Question 68

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

Question 69

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

Question 70

Write the electron arrangement for the atom shown.
Chlorine

Question 71

Which of the following is the correct electron-dot symbol for carbon?

A)
B)
C)
D)
E)

Question 72

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

Question 73

Write the electron arrangement for the atom shown.
Sulfur

Question 74

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

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

Question 75

The atomic size of atoms ________.

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 76

The metallic character of elements ________.

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 77

The atomic size of atoms ________.

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 78

Write the electron arrangement for the atom shown.
Sodium

Question 79

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

Question 80

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