Busy. Please wait.
or

show password
Forgot Password?

Don't have an account?  Sign up 
or

Username is available taken
show password

why


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.
We do not share your email address with others. It is only used to allow you to reset your password. For details read 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.
Don't know
Know
remaining cards
Save
0:01
To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

Pass complete!

"Know" box contains:
Time elapsed:
Retries:
restart all cards
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

Atoms & Elements

QuestionAnswer
Neutron particles that have no charge
Proton particles that have a positive
Electron Particles that have a negative charge
Periodic Table A table that shows the elements, their atomic number, symbol, and average atomic mass; elements with similar chemical properties are grouped together.
Compound A substance made up of atoms of two or more different elements joined by chemical bonds
atomic number The number of protons in the nucleus of an atom and the number of electrons in an atom
period A horizontal row of elements in the periodic table. It tells you the number of energy levels an atom has.
column A column on the periodic table. It tells you the number of electrons on the last energy level
electron shell An energy level representing the distance of an electron from the nucleus of an atom.
valence electrons Electrons on the outermost energy level of an atom
Covalent bond A chemical bond that involves sharing a pair of electrons between atoms in a molecule
Ions Charged atoms Charged particles. when a molecule gains or looses an electron
cation A positively charged ion
anion A NEGATIVELY CHARGED ION
malleable capable of being shaped
ductile A term used to describe a material that can be pulled out into a long wire.
luster The way a mineral reflects light
corrosive (adj.) having the tendency to erode or eat away (The effect of the chemical was highly corrosive.)
semiconductor A substance that can conduct electricity under some conditions A material that when combined with some other material can be turned into an insulator or a conductor.
Alkali Metals Group 1, 1 electron in outer level, very reactive, soft, silver, shiny, low density; Lithium, Sodium, Potassium, Rubidium, Cesium, Francium
Alkaline Earth metals metallic elements in group 2 of the periodic table which are harder than the alkali metals and are also less reactive
Halogens Group 17. the poisonous group of elements containing Cl, F, I, etc
Diatomic Molecule The simplest molecules contain only two atoms. H2, N2, O2, F2, Cl2, Br2, I2
conductivity A material's ability to allow heat to flow The ability of an object to transfer heat or electricity to another object.
Transition metals The elements in Groups 3-12 are transition metals. They are usually less reactive than other metals. They are able to be easily shaped. Metallic.
synthetic elements Elements which do not occur naturally and are made in laboratories.
Boiling point The temperature at which a liquid changes to a gas
Melting point The temperature at which a solid becomes a liquid