Type
Crossword
Description

how Archeologist find out how old a dinosaur is carbondating
elements with short half lives are used in this therapy cancer therapy
the weight of a negatively charged particle that is zero electron mass
the weight of a neutral particle that is one neutron mass
the weight of a positively charged particle that weighs one proton mass
fission is splittling
fusion is combining
radiation where the atoms is excited then relaxes to ground state gamma
radiation where the atomic mass stay the same and the number of protons increase by one beta
radiation where there is a loss of a helium particle alpha
how types of radiation can go through stuff penetrating power
the most relaxed state of an atom ground state
when an atom absorbs energy it becomes excited
they weigh one mass unit and are positive protons
they weigh one mass unit and are neutral neutrons
they weigh almost nothing and are negative electrons
how longs it takes for a sample to decay by half it's weight half-life
how much an atom weighs atomic weight
he became a superhero through gamma radiation the hulk

Atoms and elements Cross word

Type
Crossword
Description

The negatively charged particle in the electron cloud. Electron
A particle in the nucleus that is positively charged Proton
A particle in the nucleus with a neutral, or no charge Neutron
A tiny, dense positively charged region in the center of an Atom Nucleus
Particles, like protons, neutrons, and electrons that are smaller than atoms Subatomic particles
Regions inside the Atom where electrons are likely to be found. This model developed by Schrodinger, is called Quantum Theory Electron Cloud
The number of protons in an element Atomic Number
The average of the masses the neutrally occurring isotopes in element Atomic mass
The arrangement of elements on a table based on their atomic number Periodic table
A column on the periodic table, also called a family containing elements with the same number of Valence electrons Chemical group
one of a hundred or so pure substances that cannot be broken down into simpler substances Element

atoms Crossword

Type
Crossword
Description

the smallest component of an element atom
Dense, positively charged mass at the center of an atom. nucleus
Positively charged subatomic particle found in the nucleus. proton
Neutral subatomic particle found in the nucleus. neutron
Negatively charged subatomic particle found outside the nucleus. electron
The sum of the protons and neutrons in the nucleus of an atom. mass number
This number identifies the element and is equal to the number of protons found in the nucleus. atomic number
An atom with a charge (unequal number of protons and electrons) ion
Versions of the same element with different numbers of neutrons. isotopes
The possible energies that an electron in an atom can have. energy levels
The weighted average mass of all of an element's isotopes' mass numbers (usually a decimal). atomic weight
A visual model showing the most likely locations for the electrons in an atom. electron cloud
The arrangement of electrons around the nucleus of an atom. electron configuration
When all of the electrons in an atom have their lowest possible energies. ground state
the property of a body that causes it to have weight mass
the property of something that is great in magnitude volume
a stable particle with positive charge proton
an elementary particle with negative charge electron
of or relating to constituents of the atom or forces within the atom subatomic
(nontechnical usage) a tiny piece of anything particle

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

Atomic Structure Crossword Puzzle

Type
Crossword
Description

The smallest unit of an element that maintains the properties of that element. Atom
A subatomic particle that has no change and that is found in the nucleus of an atom. neutron
A region around the nucleus of an atom whose electrons are likely to be found. electron cloud
A unit of mass that describes the mass of an atom or molecule. atomic mass unit
An atom's central region, which is made up of protons and neutrons. nucleus
An atom that has the same number of protons/atomic number as other atoms of the same element do but that has a different number of neutrons/atomic mass. isotope
The mass of an atomn expressed in atomic mass units. atomic mass
A subatomic particle that has a positive charge and that is found in the nucleus of an atom. proton
A subatomic particle that has a negative charge. electron
The sum of the number of protons and neutrons in the nucleus of an atom. mass number
The number of protons in the nucleus of an atom; the atom's number is the same for all atoms of an element. atomic number
Plays in radioactive atoms that changes a neutron to a proton or electron. weak force
A type of physical that occurs between electrically charged particles. electromagnetic force
The force that holds particles together in the atomic nucleus. strong force
A force that attracts any objects with mass. gravitational force

Periodic Table Puzzle Crossword

Type
Crossword
Description

What are positively charged particles of the atom? protons
What are negatively charged particles of an atom? electrons
What particle of anatom has no charge? neutrons
Where are protons found? nucleus
Where are electrons found? electron clouds
An _______ is an atom that has the same number of protons but a different number of neutrons as other atoms of the same element. isotope
The ____ ______ is the total number of protons and neutrons. mass number
What detrmines the identity of an atom? atomic number
What is an average of the masses of all naturally occuring isotopes of an element? Atomic mass
The electrons in the outermost energy level of an atom are called _______ _________. valence electrons
Alkali Metals only have ___ valence electron? one
Valence electrons determine the _____ of which an element si placed. group
Lithium is a? alkali metal
Is Flourine a metal or nonmetal? nonmetal
A ______ loses an electron and becomes positively charged. cation
A _____ gains an electron and becomes negatively charged. anion
A row of elements is called a ______. period
What are charged particles that form during chemical changes? ions
What is it called when 2 atoms of nonmetals bond? covalent bonding
What is it called when a metal reacts with a nonmetal? ionic compounds

Nuclear Chemistry Vocabulary Crossword

Type
Crossword
Description

The ability of radiation to pass through matter Penetrating Power
Isotopes of atoms with unstable nuclei Radioisotope
A form of high energy electromagnetic radiation emitted from some materials that are in an excited electron state X-Ray
High energy radiation that accounts for most of the energy lost during radioactive decay Gamma Ray
Radiation that is made up of alpha particles and is deflected toward a negatively charged plate when radiation from a radioactive source is directed between two electrically plates Alpha radiation
Radiation that is made up of beta particles and is deflected toward a positively charged plate when radiation from the radioactive source is directed between two electrically charged plates Beta radiation
A radioactive decay process that occurs when an atom's nucleus draws in a surrounding electron, which combines with a proton to form a neutron, resulting in an x-ray photon being emitted Electron capture
The time required for one-half of a radioisotope's nuclei to decay into its products Half-life
Protons and neutrons Nucleon
A particle that has the same mass as an electron but an opposite charge Positron
A radioactive decay process in which a proton in the nucleus is converted into a neutron and a positron, and then the positron is emitted from the nucleus Positron emission
A series of nuclear reactions that starts with an unstable nucleus and results in the formation of a stable nucleus Radioactive Decay Series
The process that is used to determine the age of an object by measuring the amount of a certain radioisotope remaining in that object Radiochemical dating
A force that acts on subatomic particles that are extremely close together and overcomes electrostatic repulsion among protons Strong Nuclear force
A reaction in which an atom's atomic number is altered Transmutation
A nuclear reactor that is able to produce more fuel than it uses Breeder reactor
The minimum mass of a sample of fissionable material necessary to sustain a nuclear chain reaction Critical mass
The difference in mass between a nucleus and its component nucleons Mass defect
The splitting of a nucleus into smaller, more stable fragments, accompanied by a large release of energy Nuclear Fission
The process of binding smaller atomic nuclei into a single, larger, and more stable nucleus Nuclear fusion
A nuclear fusion reaction Thermonuclear reaction
The process in which nuclei are bombarded with high-velocity charged particles in order to create new elements Induced Transmutation
An element with an atomic number of 93 or greater on the periodic table Transuranium element
Radiation that is energetic enough to ionize matter it collides with Ionizing Radiation
An isotope that emits non-ionizing radiation and is used to signal the presence of an element or specific substance Radiotracer

Structure of the Atom Crossword

Type
Crossword
Description

Positive particles around the nucleus Protons
Center of atom Nucleus
Negative particles outside the nucleus Electrons
Located outside the nucleus with electrons ElectronClouds
Neutral charged particles around the nucleus Neutrons
Atomic Number = Protons and Electrons APE
Mass Number - Atomic Number = Number of Neutrons MAN
The electrons on the very outer ring of the atom ValenceElectrons
Quantity of protons and electrons in the nucleus of an atom AtomicNumber
The sum of the number of neutrons and protons Mass Number
The property of an atom that causes it to have weight AtomicMass
The horizontal rows in the periodic table Periods
The vertical rows in the periodic table Groups
Arrangement of elements according to atomic number on a table PeriodicTable
Pure substances that can't be broken down or changed Elements
2 or more elements chemically bonded Compound
Abbreviation for each element Symbol
A single atom or several atoms bound together electro magnetically bonded. Molecule
1. All matter consists of minuscule particles called atoms. 2. All atoms of a given element are identical to each other. 3. All atoms of a given element are different than those of other elements. 4. Atoms of one element combine with other elements to create compounds. They always combine in equal amounts. AtomicTheory
Atomic Mass Unit AMU

Nuclear Energy and Radioactive Materials Crossword

Type
Crossword
Description

What is a nuclear reaction that causes a nucleus to split into two or more pieces and releases neutrons and energy? fission
What is a continuous series of nuclear fission reactions? chainreaction
What is a nuclear reaction in which two light nuclei fuse together under extreme temperatures to form heavy nuclei and releases energy? fusion
Alpha decay, Beta decay, and gamma decay are all types of what? radioactive decay
What results in a new element with 2 less than the original atomic number and 4 less than the original mass number? Alpha decay
What are fast moving negative electrons that have the same mass as an electron? Beta particle
Alpha particles, Beta particles, and Gamma rays all produce what? radiation
Both nuclear fusion and nuclear fission produce what? nuclear energy
The time it takes for one half of a sample of radioactive material to decay is called what? halflife
The electricity produced from a nuclear reaction is called what? Nuclear power
What is positively charged, is made up of 2 protons and 2 neutrons, and the more massive type of nuclear radiation? Alpha particle
What results in the atomic number increasing by 1 and the mass staying the same from its original value? Beta decay
What is a type of radioactive decay that does not change the mass number or the atomic number of an atom? gamma decay
The changing of one element into another by radioactive decay is called? Transmutations
Too many protons and neutrons can cause a nucleus to become what? unstable
Fusion is the power scource for what? stars
The 2 factors that depend on risk of damage from radiation are the type of radiation and the amount of what? exposure
The human body has evolved to withstand what type of radiation? background
Nuclear energy is a _____, long term solution for producing power. dependable
What is it called when you have a different number of neutrons than the base atom? isotope
A graph of the number of radioactive parent nuclei remaining in a sample as a function time is called what? decay curve
Where in Ukraine did a devastating nuclear disaster happen that caused the whole area to have high levels of radiation? Chernobyl
What is it called when the number of electrons are different from the number of protons? ion
Using knowledge of half-life to date very old specimen is called what? radiometric dating
What is a form of electromagnetic energy? (symbol:Y) gamma ray
The energy produced from a nuclear power plant can be used to make what? electricity
A ___ nuclear ____ causes protons and neutrons to attract to one another strong force
A factor of ____ _____ is the proton/neurton ratio nuclear stability
Who made the famous, mass-energy equation?(E=mc^2) Einstein
____ is one of the risks from being exposed to high levels of radiation cancer

Periodic Table Crossword Puzzle

Type
Crossword
Description

the smallest particle of an element atom
the center of an atom nucleus
a positively changed particle in the nucleus of an atom proton
a neutral particle in the nucleus of an atom neutron
a negatively changed particle electron
an electron in the outermost energy level of an atom valance electron
the properties of elements tent to repeat in a regular an pattern periodic law
a horizontal row of elements period
another word for family group
a quantity equal to one 1/12 the mass of a carbon atomic mass unit
the number of protons in the nucleus of an atom atomic mass
the element that are usually poor conductors non-metal
the element that are good conductors of heat and electricity metal
an element that has properties of both a metal and non-metal metaloid
any atom that have the same number of protons but a different number of neutrons isotopes
another word for atomic mass unit amu

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