Matching Worksheet

A polymer is a chain of smaller molecules
Giant covalent structures are macromolecules
Graphite, Diamond, graphene and fullerenes are allotropes of carbon
ionic compounds have high melting & boiling points
Forces between covalent molecules are very weak
when ionic compounds melt they are conductors of electricity
covalent molecules do not conduct electricity because there are no free electrons
An electron is negatively charged
A proton is positively charged
Ionic compounds form giant ionic lattices due to electrostatic forces

Bonding Crossword


____________ bonding occurs between non metals Covalent
Positive and _______________ ions are formed in Ionic bonding Negative
Ionic bonding occurs between ____________ and non metals metals
This type of bonding occurs between metals metallic
________________ electrons are the reason metals can conduct electricity delocalised
Ionic compounds have ______ melting points high
The attraction between ions in Ionic bonding Electrostatic
This giant covalent comnpound has high melting points Diamond
This covalent compound can conduct electricity Graphite
Another name for giant covalent structures. M__________________ Macromolecules
Can be hammered into shape Malleable
Can be stretched or squashed Ductile
Ionic bonding involves the _____________ of electrons Transfer
Covalent bonding results in _______________ of electrons Sharing
Bonding occurs so that atoms can have a full ___________ shell of electrons outer

Atoms, Elements, and Compounds Crossword


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

atoms and molecules Word Search

Word Search

oxygen atom
water molecule
sodium chloride
electrical charge
energy level
chemical bond
ionic bond
covalent bond
nuclear force
electromagnetic force
bohr model
atomic theory
periodic table
nobel gases
electron cloud
atomic mass
subatomic particle

Chemical Bonding Crossword


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


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



protons and neutrons nucleus
charges that don't move easily through material since their electrons are tightly bound to the nucleus. insulators
A force that opposes motion between two surfaces that are in contact friction
the fundamental law of electrostatics stating that the force between two particles is directly proportional to the product of their charges and inversely proportional to the square of the distance between them Coloumbs law
charges that move easily through the material, outer electrons are not as tightly bound to the nucleus. they conduct heat and electricity easily. ex): metal, fingers, etc conductor
What is the unit for current ampere
only allows electrons to flow in one way Direct current
electrons move back and forth without appreciable movement alternating current
what is the unit for resistance ohms
uses mechanical motion to create electricity generators
Continuous path for which charge flows Electric Circuit
Rate of which energy is transferred in the circuit; 1 Watt Power
example of electrical conductors metal
force is measured in newtons
charge is measured in coloumbs
electric potential or also called voltage
gain electrons, charge becomes negative
unlike charges do what attract
like charges do what repel
A way to charge insulators and conductors Contact

Electrostatics Vocab Quiz Crossword


A study of electric charges at rest. Electrostatics
This is a force that one echarge has on another. Electric Forces
Carries a positive charge Protons
Carries a negative charge Electrons
Pushes objects apart Repulsion
Pulls objects together Attraction
Metals are not _______. Insulators
Wood, rubber, and fabric are poor_________. Conductors
A material that can be both an insulator and a conductor. Semiconductor
This material can allow flow of electricity with no resistance. Superconductor
Rubbing your socks on the carpet is charging by ________ Friction
Charging of an object without direct touching. Induction
Allowing charges to move freely along a connection between a conductor and a ground. Grounding
Term applied to an atom or molecule in which the charges are aligned so that one side is slightly more positive or negative than the opposite side. Charge Polarization
Smallest particle of matter that still has all the properties of matter. Atoms
Something that is not moving is _______. Static
Standard unit of charge is a________. Coulomb

Biology Vocabulary Crossword


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

ionic and covalent Crossword


atom shares 2 or more electrons doublebond
atom(s) that has become electrically charged ion
made of more than one atom polyatomicion
2 or more elements chemically combined compound
oppositely charged attracted ions ionic bond
electrons in the highest energy level valence electrons
composed of molecules molecular compound
dots around and element electrondotdiagram
shininess, malleability, ductility metals
shared unequally polar
formed when 2 atoms share electrons covalentbonds
three dimensional pattern crystal
lacks properties of metals nonmetals
two or more atoms molecule
shared equally polar

Ionic Bonding Crossword


As you go down the group elements have more.. electron shells
What is the chemical symbol for sodium? NA
What are the attractive forces between ions called? electrostatic
Ionic compounds can conduct electricity when they are dissolved and... molten
Ionic compounds have high... melting points
What is the name for the Group I metals? alkali metals
Ionic bonds are a type of .......... bond intramolecular
Which type of bonds are broken when heated? intermolecular
What charge does an anion have? negative
What charge does a cation have? positive
What is the name given to the most stable electron configuration? Noble
An ionic bond involves the ......... of electrons transfer
Ionic compounds form ......... structures lattice