Deck 4: Atoms and Elements

Question 1

Which of the following elements is a nonmetal?

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

Answer 1

nitrogen

Question 2

Select the correct symbol for the element.
silver

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

Answer 2

Ag

Question 3

Which of the following elements is a metal?

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

Answer 3

strontium

Question 4

Ca is the symbol for

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

Question 5

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

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

Question 6

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

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

Question 7

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

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

Question 8

Au is the symbol for

A)argon.
B)sodium.
C)silver.
D)aluminum.
E)gold.

Question 9

Select the correct symbol for the element.
sodium

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

Question 10

Select the correct symbol for the element.
potassium

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

Question 11

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

Question 12

Which of the following is a characteristic of nonmetals?

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

Question 13

Select the correct symbol for the element.
iron

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

Question 14

Which of the following elements is a noble gas?

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

Question 15

Select the correct symbol for the element.
aluminum

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

Question 16

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

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

Question 17

The primary substances of which all other things are composed are

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

Question 18

Select the correct symbol for the element.
mercury

A)Au
B)Hg
C)Ag
D)Mc
E)Pb

Question 19

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

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

Question 20

The Group 8A (18)elements

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

Question 21

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 22

Which of the following gives the correct numbers of protons, neutrons, and electrons, respectively, in a neutral atom of 11850 Sn?

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

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

In an atom, the nucleus contains

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

Question 25

The mass number of an atom can be calculated from

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

Question 26

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

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

Question 27

The number of neutrons in an atom is equal to

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

Question 28

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

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

Question 29

Identify the noble gas in the following list.

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

Question 30

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

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

Question 31

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 32

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

Question 33

The elements lithium, sodium, and potassium

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

Question 34

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

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

Question 35

The elements sodium, magnesium, and silicon

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

Question 36

Identify the metalloid in the following list.

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

Question 37

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

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

Question 38

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

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

Question 39

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

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

Question 40

According to the Atomic Theory,

A)atoms are neither created nor destroyed during a chemical reaction.
B)atoms of the same element combine to form compounds.
C)all atoms are different.
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 41

Which of the following electron configurations is impossible?

A)
B)
C)
D)
E)

Question 42

Given the following: Which are isotopes of each other?

A) are isotopes of each other.
B) are isotopes of each other; and are isotopes of each other.
C) are isotopes of each other.
D) are isotopes of each other.

Question 43

Chlorine has two naturally occurring isotopes. The isotope Cl-35 (mass = 35.0 amu)makes up 75.8% of the sample, and the isotope Cl-37 (mass = 37.0 amu)makes up 24.2% of the sample. What is the average atomic
Mass for chlorine?

A)36.6 amu
B)35 amu
C)36.0 amu
D)35.521 amu
E)35.5 amu

Question 44

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 45

What is the electron configuration for aluminum?

A)
B)
C)
D)
E)

Question 46

The number of orbitals in the 4d sublevel is

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

Question 47

What is the abbreviated electron configuration for nickel (atomic number 28)?

A)
B)
C)
D)
E)

Question 48

What element has the electron configuration

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

Question 49

What is the element with the electron configuration

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

Question 50

The number of electron levels in a magnesium atom is

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

Question 51

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

A)
B)
C)
D)
E)

Question 52

The atomic mass of an element is equal to

A)its mass number.
B)the average mass of all of the naturally occurring isotopes of the element.
C)its atomic number.
D)one-twelfth of the mass of a carbon-12 atom.
E)a weighted average mass of all of the naturally occurring isotopes of the element.

Question 53

The electron configuration of an atom shows

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

Question 54

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

A)
B)
C)
D)
E)

Question 55

Isotopes are atoms of the same element that have

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

Question 56

What is the element with the abbreviated electron configuration

A)Pd
B)Kr
C)Pt
D)Xe
E)Ni

Question 57

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

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

Question 58

What is the correct electron configuration for the lithium atom?

A)
B)
C)
D)
E)

Question 59

Silicon has three naturally occurring isotopes: Si-28 (mass 28.0 amu); Si-29 (mass = 29.0 amu)and Si-30 (mass = 30.0 amu). If the average atomic mass of silicon is 28.1 amu, which isotope is the most abundant?

A)Si-29
B)Si-28
C)Si-30
D)All isotopes have the same natural abundance.

Question 60

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

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

Question 61

Of the elements: B, C, F, Li, and Na, the element with the smallest atomic radius is

A)B.
B)C.
C)F.
D)Li.
E)Na.

Question 62

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

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

Question 63

Valence electrons are electrons located

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

Question 64

Of the elements: Li, Na, K, Rb, and Cs, the element with the most metallic character is

A)Li.
B)Na.
C)K.
D)Rb.
E)Cs.

Question 65

Write in the electronic configuration for the atom shown.
Chlorine

Question 66

The number of dots in the electron dot structure of nitrogen is

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

Question 67

The ionization energy of atoms

A)decreases going down within a group.
B)increases going down within a group.
C)does not change going down within a group.
D)decreases going across a period.

Question 68

Write in the electronic configuration for the atom shown.
Sodium

Question 69

The number of dots in the electron dot structure of carbon is

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

Question 70

Of the elements: B, C, F, Li, and Na, the element with the most metallic character is

A)B.
B)C.
C)F.
D)Li.
E)Na.

Question 71

In an electron-dot structure of an element, the dots are used to represent

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

Question 72

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

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

Question 73

Of the elements: B, C, F, Li, and Na, the element with the least metallic character is

A)B.
B)C.
C)F.
D)Li.
E)Na.

Question 74

The atomic size of atoms

A)decreases going across a period.
B)decreases going down within a group.
C)does not change going across a period.
D)increases going across a period.

Question 75

Ionization energy is

A)the energy an ion acquires from an electron.
B)higher for potassium than for lithium.
C)highest for metals in Group 1A (1).
D)the energy needed to remove an electron from the outermost energy level.
E)higher for chlorine than for fluorine.

Question 76

Write in the electronic configuration for the atom shown.
Argon

Question 77

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

A)
B)
C)
D)
E)

Question 78

Of the elements: B, C, F, Li, and Na, the element with the highest ionization energy is

A)B.
B)C.
C)F.
D)Li.
E)Na.

Question 79

Of the elements: B, C, F, Li, and Na, the element with the smallest ionization energy is

A)B.
B)C.
C)F.
D)Li.
E)Na.

Question 80

Of the elements: B, C, F, Li, and Na, the element with the largest atomic radius is

A)B.
B)C.
C)F.
D)Li.
E)Na.