Type
Crossword
Description

the state or power of being reactive or the degree to which a thing is reactive. REACTIVITY
a number, figure, symbol, or indicator that is smaller than their normal line of type and is set slightly below or above it. subscript
when an electron relocates from an atom to another such chemical entity. electron transfer
are diagrams that show the bonding between atoms of a molecule and the lone pairs of electrons that may exist in the molecule. Lewis dot diagram
an atom or a molecule in which the total number of electrons is not equal to the total number of protons ion
the complete transfer of valence electrons between atoms IONIC BOND
a chemical bond that involves the sharing of electron pairs between atoms. covalent bond
a strong force of attraction holding atoms together in a molecule or crystal, resulting from the sharing or transfer of electrons. chemical bond
a type of chemical bond where a pair of electrons is unequally shared between two atoms. polar bond
are a type of chemical bond where two atoms share a pair of electrons with each other. nonpolar bond
the minimum quantity of energy that the reacting species must possess in order to undergo a specified reaction. Activation energy
a substance that takes part in and undergoes change during a reaction. reactant
a quantity obtained by multiplying quantities together, or from an analogous algebraic operation. product
a chemical reaction that releases energy by light or heat Exothermic reaction
process describes a process or reaction in which the system absorbs energy from its surroundings; usually, but not always, in the form of heat. Endothermic reaction
a mathematical relationship or rule expressed in symbols. Chemical formula

Chemical Bonding Crossword

Type
Crossword
Description

Bonding which results from the electrical attraction between cations and anions Ionic Bonding
when two atoms share a pair of electrons Covalent Bonding
Covalent bond when electrons are not shared equally Polar covalent bond
the simplest structual unit of an element molecule
compound that consists of positive and negative ions Ionic compound
in a chemical compound the max amount of electrons is 8 in the highest energy level Octet rule
A charged group of covalently bonded atoms Polyatomic ions
bonding that results from the attraction between metal atoms and the surrounding sea of electrons Metallic bonding
ability of a substance to be hammered into thin sheets Melleability
ability of a substance to be drawn or pulled through a small opening to make a wire Ductiliy
simplest collection of atoms from which an ionic compound's formula can be established Formula Unit
covalent bond when one pair of electrons is shared between two atoms single bond
energy required to break a chemical bond and form isolated atoms bond energy
bonding that has an eneven distribution of charge polar

chemical bonding Crossword

Type
Crossword
Description

an electrical force linking atoms chemicalbond
chemical bonding that reults from the eletrical attraction between large number of cations and anions ionicbonding
results from the sharing of electron pairs between two atoms covalentbonding
A covalent bond where electrons are not shared equally polarcovalentbond
the simplest structural unit of an element or compound molecule
a chemical compound whose simplest unit are molecule molecularcompound
a representation of a substance using symbols for its consituent elements chemicalformula
the energy required to break a chemical bond and form neutral isolated atoms bondenergy
States that atoms lose, gain or share electrons in order to acquire a full set of eight valence electrons octet rule
atoms gain more than 8 valence electrons expandedvalence
a bond formed when two atoms share a pair of electrons single covalent bond
a bond in which two atoms share two pairs of electrons double covalent bond
a bond formed by sharing three pairs of electrons triple covalent bond
a compound that consists of positive and negative ions ionic compound
ions that are made of more than one atom polyatomic ions
the uneven distribution of molecular charge molecular polarity
attractions between oppositely charged regions of polar molecules dipole forces
compounds composed of two different elements binary ionic compounds

Atomic Structure and the Periodic Table Crossword

Type
Crossword
Description

The "outer energy shell" of and atom valence
Electrons are "shared" in this type of bond. covalent
Electrons are "stolen" in this type of bond. Ionic
The smallest unit of matter with all the properties of that substance. atom
This matches the number of protons in an atom. atomicnumber
A neutron has a ___________________ charge. neutral
"Like" electric charges ____________________ each other. repel
A combination of one or more atoms. molecule
The location around the nucleus where electrons orbit. electroncloud
A charged particle. ion
A "Family" of elements that do not typically react with other elements. Noblegases
The "Family" of elements that are very reactive. halogens
Characteristics that are measurable or observable are called physical _____________. properties
Subtract the atomic number from the atomic mass to find the number of _________________. neutrons
Electrons have a ______________________ charge. negative
Protons have a _________________________ charge. positive
An abreviated way to name an element. Chemicalsymbol
Other than hydrogen and helium, the number of electrons needed to fill the valence shell. eight
The center of an atom where the protons and neutrons are located. nucleus
An element that can have a variable number of neutrons in its nucleus. isotope
Atoms with full outer energy shells are known to be _______________. stable
A group of elements with similar properties are known as a _________________. family
Reactivity is a ______________________ property. chemical
The elements are organized into this grid. periodictable
When elements react they form new _____________________. substances
This element is found in all organic matter and has four valence electrons. carbon
NaCl is the ___________________________ for salt. chemicalformula
Each ___________________ on the periodic table represents the number of valence electrons in an element. column
Each __________ on the Periodic Table represents the number of "energy levels" an element has. row
The "electronic connections" between elements in a molecule. bonds

Atoms, Elements, and Compounds Crossword

Type
Crossword
Description

are the building blocks of matter Atoms
Neutrons and Protons are located here Nucleus
Positively charged particles Protons
Particles that have no charge neutrons
Negitively charged particles Electrons
pure substances that cannot be broken down into other substances by physical or chemical means Element
Atoms of the same element that have different numbers of neutrons Isotopes
A pure substance formed when two or more different elements combine Compound
chemical bond that forms when electrons are shared Covalent bond
a compound in which the atoms are held together by covalent bonds Molecule
an electrical attraction between two oppositely charged atoms or groups of atoms ionic bonds
process by which atoms or groups of atoms in substances are reorganized into different substances chemical reaction
substance that lowers the activation energy needed to start a chemical reaction catalyst
biological catalyst that speed up the rate of chemical reactions in biological processes enzymes
specific location where a substrate binds on an enzyme active site
molecules that have an unequal distribution of charges polar molecules
the electrostatic attraction hydrogen bond
the substance that is dissolved in the solvent solute
substance in whih another substance is dissolved solvent
anothe name for homogeneous mixture solution

Biology Vocabulary Crossword

Type
Crossword
Description

what is the basic unit of a chemical element? atom
what is a substance consisting of atoms which all have the same number of protons? element
what is the smallest particle in a chemical element or compound that has the chemical properties of that element or compound? molecule
what is a chemical bond formed between two ions with opposite charges? ionic bond
what is a chemical bond formed by the sharing of one or more electrons, especially pairs of electrons, between atoms? covalent bond
What is a weak chemical bond between an electronegative atom, such as fluorine, oxygen, or nitrogen, and a hydrogen atom bound to another electronegative atom? Hydrogen bond
What is the sticking together of alike molecules, such as water molecule being attracted to another water molecule? Cohesion
What is the force of attraction between unlike molecules, or the attraction between the surfaces of contacting bodies? Adhesion
What is a measure of the hydorgen ion concentration of a solution? pH
What is a molecule that can combine with others of the same kind to form a polymer? Monomer
What are large molecules composed of many similar smaller molecules linked together ? Polymer
What is a large complex molecule, such as nucleic acids, proteins, carbohydrates, and lipids, with relatively large molecular weight ? Macromolecule
What are molecular compounds made from just three elements: carbon, hydrogen and oxygen.? Carbohydrate
What is a series of sweet-tasting, crystalline carbohydrates, especially a simple sugar or a chain of two or more simple sugars? Saccharide
what is an organic molecule of biological origin that is insoluble in water and soluble in non-polar solvents ? lipid
What is a molecule composed of polymers of amino acids joined together by peptide bonds.? protein
What are the building blocks of all biological proteins ? Amino acid
What are proteins that act as catalysts within living cells ? Enzyme
What is a substance capable of initiating or speeding up a chemical reaction? catalyst
What is a model that assumes an enzyme and substrate have a rigid interaction with each other, where a substrate fits in a key-like fashion to its lock, the enzyme, turning on the reaction ? Lock and key model
What are acids consist of either one or two long chains of repeating units called nucleotides, which consist of a nitrogen base attached to a sugar phosphate? nucleic acid
what is a chemical reaction that builds up molecules by losing water molecules ? dehydration systhesis
What is a chemical reaction in which two molecules combine to form a larger molecule with the elimination of a small molecule ? condensation reaction

Basic Chemistry Crossword

Type
Crossword
Description

The study of matter chemistry
Occupies space and has mass Matter
Solid, liquid, gas State of matter
Pure substances consisting of only one kind of atom in each molecule. Element
Pure substances consisting of two or more atoms in each molecule Compound
Chart of elements organized according to their atomic structure Periodic table
The part of the atom containing the protons and neutrons Nucleus
Positive particle of an atom. The number of these determines what kind of element it is Proton
Neutrally charged particle found in the nucleus and has mass Neutron
Negatively charged particle outside the nucleus Electron
Donated electrons form charged particles called ions to stick together Ionic bond
Shared electrons hold atoms together. Covalent bond
A distinct group of atoms bonded together Molecule
The smallest unit of an element Atom
Shows how atoms in a molecule are located and connected Structural formula
Show the number and type of atoms in a molecule Chemical formula
The ability to do work Energy
A protein molecule or organic molecule used as a catalyst Enzyme
Substances that affect the rate of a reaction but are not changed themselves. Also may start or stop a reaction from occurring. Catalyst
The metric unit used to weigh of a bar of gold kilogram
Substances that enable enzymes to work properly. Coenzyme
Small amount of liquid chemicals would be measured using this metric unit. Milliliter

Ionic and Covalent crossword puzzle

Type
Crossword
Description

can usually form between atoms of nonmetals convalentbond
share two pairs of electrons doublebond
A group of atoms formed by the loss or gain of one or more electrons ion
show the bonding between atoms of a molecule and the lone pairs electrondotdiagram
complete transfer of valence electrons between atoms ionicbond
A group of atoms bonded together molecule
a consisting of molecules molecular
composed of two or more separate elements compound
an equal sharing of electrons between the two atoms of a diatomic molecule nonpolar
having electrical or magnetic polarity polar
composed of two or more atoms covalently bonded or of a metal polyatomicion
solid consisting of a symmetrical ordered threedimensional aggregation of atoms or molecules crystal
associated with an atom and that can participate in the formation of a chemical bond valanceelectrons
is an effective conductor of electricity and heat metal
an element or substance that is not a metal nonmetals

Ionic Bonding Crossword

Type
Crossword
Description

displays valence electrons in an element Electron Dot Diagram
atom with a + or - charge ion
ion with negative charge anion
ion with positive charge cation
force that holds atoms or ions together as a unit Chemical Bond
notion that shows what elements a compound contains and the ratio of atoms or ion Chemical Formula
attraction between a metal cation and the shared electrons that surround it MetallicBond
sharing of electrons CovalentBond
transfer of electrons IonicBond
tells you how many atoms of each element combine subscript number
force that holds the atoms together in a substance bond
primary reason why elements form compounds Octet Rule

Covalent Bonding Crossword

Type
Crossword
Description

Involves the sharing of electron pairs between atoms. Covalent Bond
Group of atoms bonded together. Molecule
Molecules composed of only 2 atoms. Diatomic Molecule
A compond where the atoms share electrons through covalent bonds. Molecular Compound
Formula giving the # of atoms in one molecule of a specific compound. Molecular Formula
Only one pair of electrons is shared between atoms. Single Covalent Bond
A formula that shows the arrangement of atoms in the molecule of a compound. Structural Formula
Pairof valence electrons of opposite spin that arent shared between the atomsin a molecule. Unshared Pair
The weakest intermolecular force. Dispersion Forces
A weak bond between 2 molecules. Hydrogen Bond
A pair of equal and oppositely charged poles separated by a distance. Dipole
Attractive orrepulsive forces between molecules that dont arise fromcovalent bonds or ionic bonds Van Der Waals Force
2 pairs of electrons are shared between the atoms rather than just one pair. Double Covalent Bond
A chamical bond between atoms involving 6 bonding electrons instead of 2 in a covalent single bond. Triple Covalent Bond
2 center, 2electron covalent bond in which 2 electrons derive from the same atom. Coordinate Covalent Bond
Composed of 2 or more atomscovalently bonded. Polyatomic ion
One measure of the strength of a chemical bond. Bond dissociation
A way of describing delocalized electrons within certain molecules where the bonding cant be expressed by one lewis structure. Resonance Structure
A model used in chemistry to predict the geometry of individual molecules from the # of electron pairs surrounding their central atoms. VSEPR Theory
A central atom is located at the center with 4substituentsthat are located at the corners. Tetrahedral Angle
Chemical bond where 2 atoms share a pair of electrons. Nonpolar Covalent bond
Bonds that are partly ionic. Polar Bonds
Has a slight positive charge onone side and a slight negative charge on the other. Polar Molecules
When 2 dipolar molecules interact with eachother through space. Dipole Interactions

Chemistry of life Crossword

Type
Crossword
Description

The basic unit of a chemical element Atom
A substance made of only one kind of atom (pure substance) Element
A substance made of joined atoms of two or more different elements Compound
A group of atoms bonded together Molecule
An attraction between substances of the same kind Cohesion
An attraction between different substances Adhesion
A mixture in which one or more substances are evenly distributed in another substance Solution
Compounds that form hydrogen Ions when dissolved in water Acid
Compounds that reduce the concentration of the hydrogen Ions in a solution Base
A biological molecule consisting of carbon (glucose) Carbohydrate
(FAT) saturated twice energy as carb Lipid
Amino Acid "Building Blocks" Protien
DNA RNA Nucleic Acid
biologically important organic compounds containing amine and carboxylic acid functional groups Amino Acid
property of objects which can be transferred to other objects or converted into different forms. Energy
the minimum quantity of energy that the reacting species must possess in order to undergo a specified reaction. Activation Energy
Used to regulate the rate (speed) Enzyme
Basic reaction (fits) Subtrate
a region on an enzyme that binds to a protein or other substance during a reaction. Active Site