Atoms and Molecules

Question 1

Protons and neutrons are nearly ______ times more massive than electrons

Answer 1

2000

Question 2

Free movement allows metals to conduct electricity

Answer 2

Metallic Bonding

Question 3

occupy the upper right-hand portion of the periodic table

Answer 3

Nonmetals

Question 4

The density of the small white dots is related to the

Answer 4

probability of finding an electron at a particular location

Question 5

Percentages describing the relative amounts of each isotope

Answer 5

Isotopic abundances

Question 6

Atoms of an element with different numbers of neutrons are called

Answer 6

isotopes

Question 7

can measure the masses of atoms, isotopes, and molecules

Answer 7

Mass Spectrometer

Question 8

Derived from a single atom

Answer 8

Monatomic ion

Question 9

Enables formation of long chains in all polymers

Answer 9

Covalent Bonding

Question 10

is the atomic number

Answer 10

Subscript Z

Question 11

Have chemical properties intermediate of metals and nonmetals

Answer 11

Metalloids or semimetals

Question 12

identifies an element

Answer 12

Atomic Number

Question 13

conduct electricity and tend to form cations

Answer 13

Metals

Question 14

Names and symbols of some common elements whose symbols are not related to their English names:

Answer 14

Gold Au (aurum) Iron Fe (ferrum) Lead Pb (plumbum) Mercury Hg (hydrargyrum) Silver Ag (argentum) Sodium Na (natrium)

Question 15

Matter is made of small particles called

Answer 15

Atom or Molecule

Question 16

smaller molecules linked together in polymers

Answer 16

Monomers

Question 17

tell the relative ratio between the numbers of atoms of the different elements present in a molecule

Answer 17

Empirical formulas

Question 18

The nucleus is surrounded by a

Answer 18

cloud of electrons

Question 19

are shiny, malleable, and ductile

Answer 19

Metals

Question 20

Atoms of an element that differ in the number of neutrons in their nucleus

Answer 20

Isotopes

Question 21

formed when the number of protons is not equal to the number of electrons in an atom

Answer 21

Ions

Question 22

Bonding in which electrons are shared between pairs of atoms rather than donated from one atom to another

Answer 22

Covalent

Question 23

are not shiny, malleable, or ductile

Answer 23

Nonmetals

Question 24

The number of protons in an atom of a given element is the same as the

Answer 24

atomic number

Question 25

Sum of the number of protons and number of neutrons in a nucleus

Answer 25

Mass number

Question 26

describe a compound in terms of the elements the compound contains

Answer 26

Chemical Formulas

Question 27

Bonding in which the nuclei and some fraction of their electrons comprise a positively charged “core” localized at lattice points in an extended array, and other electrons move more or less freely throughout the whole array

Answer 27

Metallic

Question 28

anything that has mass and occupies space

Answer 28

Matter

Question 29

a constant called the permittivity of a vacuum

Answer 29

ε0

Question 30

Water molecules associated with certain compounds called

Answer 30

hydrates

Question 31

is the mass number

Answer 31

Superscript A

Question 32

indicate the elements and number of atoms of each element actually contained in a discrete unit of a compound

Answer 32

Molecular formulas

Question 33

information regarding atomic structure that is written in scientific shorthand

Answer 33

Atomic Symbols

Question 34

states that the force between ions is proportional to the product of the ion charges divided by distance squared

Answer 34

Coulombs’law

Question 35

are predominant or exclusive constituents of most of the molecules that make up the human body

Answer 35

Nonmetals

Question 36

Horizontal rows on the periodic table

Answer 36

Periods

Question 37

Atoms have a __________, which contains protons and neutrons

Answer 37

nucleus

Question 38

Polymers used in everyday objects

Answer 38

* Polyethylene * Poly(vinyl chloride), PVC * Polyacetylene

Question 39

All atoms of an element have the same number of

Answer 39

protons

Question 40

measures accurately the number of particles with a given mass

Answer 40

Mass Spectrometer

Question 41

Vertical columns on the periodic table

Answer 41

Groups

Question 42

mass (amu) of neutron

Answer 42

1.009

Question 43

do not conduct electricity and tend to form anions

Answer 43

Nonmetals

Question 44

Common names of specific groups

Answer 44

* Group 1 - Alkali metals * Group 2 - Alkaline earth metals * Group 17 - Halogens * Group 18 - Noble gases/rare gases

Question 45

Number of protons in a particular atom

Answer 45

Atomic Number

Question 46

Ions with more electrons than protons are called

Answer 46

anions

Question 47

Emphasizes proton, neutron, and electron distribution; does not accurately depict current accepted model of atomic structure

Answer 47

Solar system depiction of atomic structure

Question 48

Protons are _______, electrons are ____________, and neutrons are _________

Answer 48

positively charged negatively charged neutral

Question 49

Are clustered along a diagonal path in the periodic table between the metals and nonmetals

Answer 49

Metalloids or semimetals

Question 50

1 atomic mass unit or amu

Answer 50

1.6605 x 10^-24 g

Question 51

are generally located toward the left and bottom of the periodic table

Answer 51

Metals

Question 52

All isotopes of an element are _____________ – undergo the exact same chemical reactions

Answer 52

chemically identical

Question 53

An element and its ion have the same chemical symbol but different ______

Answer 53

properties

Question 54

mass (amu) of electron

Answer 54

0.00055

Question 55

mass (amu) of proton

Answer 55

1.007

Question 56

Isotopes of an element have

Answer 56

different masses

Question 57

the long chain of bonded carbon atoms formed when monomers link together to form polymers

Answer 57

Polymer backbone

Question 58

the atomic symbol for element

Answer 58

X

Question 59

is composed of atoms

Answer 59

Matter

Question 60

Isotopes are identified by their mass numbers

Answer 60

mass number = protons + neutrons

Question 61

Derived from a group of atoms with an overall charge

Answer 61

Polyatomic ion

Question 62

Bonding in compounds having collections of oppositely charged ions that form an extended array called a lattice

Answer 62

Ionic

Question 63

A pure substance made up of atoms of two or more elements joined together by chemical bonds

Answer 63

Chemical compound

Question 64

very large molecules made up of many smaller molecules linked togethe

Answer 64

Polymers

Question 65

Ions with more protons than electrons are called

Answer 65

cations

Question 66

Table regions

Answer 66

* Groups 1 to 2 and 13 to 18 are main group elements/representative elements * Groups 3 to 12 are transition metals * Lanthanides and actinides are the elements that appear below the rest of the table

Question 67

added to stress that these units are attached end to end to build up the long chain of the polymer

Answer 67

Dashes