Save
Upgrade to remove ads
Busy. Please wait.
Log in with Clever
or
show password
Forgot Password?
Don't have an account?  Sign up 
Sign up using Clever
or
Username is available taken
show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account. Your email address is only used to allow you to reset your password. See our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
focusNode
Didn't know it?
click below
 
Knew it?
click below
Don't Know
Remaining cards (0)
Know
0:00
edit
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

Elements

TermDefinition
Atom The basic particle from which all elements are made; the smallest particle of an element that has the properties of that element.
Electron A tiny, negatively charged particle that moves around the outside of the nucleus of an atom.
Nucleus The central core of an atom which contains protons and neutrons.
Proton Small positively charged particles that are found in the nucleus of an atom.
Energy Level A region of an atom in which electrons of the same energy are likely to be found.
Neutron A small particle in the nucleus of the atom, with no electrical charge.
Atomic Number The number of protons in the nucleus of an atom.
Isotope An atom with the same number of protons and a different number of neutrons from other atoms of the same element.
Mass Number The sum of protons and neutrons in the nucleus of an atom.
Atomic Mass The average mass of all the Isotopes of an element.
Periodic Table An arrangement of the elements showing the repeating pattern of their properties.
Chemical Symbol A one- or two-letter representation of an element.
Period A horizontal row of elements in the periodic table.
Group Elements in the same vertical columns of the periodic table; also called a family.
Metal A class of elements characterized by physical properties that include shininess, malleability, ductility, and conductivity.
Luster The way a mineral reflects light from its surface.
Malleable A term used to describe material that can be hammered or roller into flat sheets.
Ductile A term used to describe a material that can be pulled out into a long wire.
Thermal Conductivity The ability of an object to transfer heat.
Electrical Conductivity The ability of an object to carry electrical current.
Reactivity The ease and speed which and element combines, or reacts, with other elements and compounds.
Corrosion The gradual wearing away of a metal element due to a chemical reaction.
Alkali Metal An element in Group 1 of the periodic table.
Alkaline Earth Metal An element in Group 2 of the periodic table.
Transition Metal One of the elements in Groups 3 through 12 of the periodic table.
Nonmetal An element that lacks most of the properties of a metal.
Diatomic Molecule A molecule consisting of two atoms.
Halogen An element found in Group 17 of the periodic table.
Noble Gas An element in Group 18 of the periodic table.
Metalloid An element that has some characteristics of both metals and nonmetals.
Semiconductor A substance that can conduct electric current under some conditions.
Radioactive Decay The process in which radioactive elements break down, releasing fast-moving particles and energy.
Nuclear Reaction A nuclear reaction involving the articles in the nucleus of an atom that can change on element into another element.
Radioactivity The spontaneous emission of radiation by and unstable atomic nucleus.
Alpha Particle A particle given off during radioactive decay that consists of two protons and two neutrons.
Beta Particle A fast-moving electric current that is given off as nuclear radiation.
Gamma Ray Electromagnetic waves with the shortest wave lengths and highest frequenices.
Half-Life The time it takes for half of the atoms of a radioactive element to decay.
Radioactive Dating The process of determining the age of a n object using the half-life of one or more radioactive objects.
Tracer A radioactive isotope that can be followed through the steps of a chemical reaction or industrial process.
Created by: ebutterfield005
 

 



Voices

Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!
"Know" box contains:
Time elapsed:
Retries:
restart all cards