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

PhySci test

QuestionAnswer
2 components that make up matter pure substances and mixtures
components that make up a pure substance elements and compounds
smallest building block of matter atom
state of matter with a regular pattern of molecules solid
subatomic particle which defines an atom proton
an ion has given up an electron and is now positive cation
an ion receives an electron with a negative charge anion
present day PT is arranged by increasing the atomic number
law says that the chemical properties of elements are periodic functions Periodic Law
is formed when atoms share electrons diatomic molecule
six indicators of a chemical reaction color change, gas release, temperature change, light, odor release, formation of a precipitate
what does the Law of Conservation say about chemical reactions matter can neither be created nor destroyed
atom basic particle of matter which constructs all other matter
chemical change any change in which a substance alters its composition
compound a pure substance consisting of atoms of two or more elements bonded together
element pure substance that contains only one kind of atom
heterogeneous mixture with individual, distinct substances
homogeneous uniformly blended mixture
matter anything that takes up space and has mass
mixture nonchemical blend of two or more substances
phase matter that has different properties from other matter around it
phase change when energy is added to change the state of matter
physical change any change in which the composition of a substance is not altered
pure substance substance that contains only a single element or compound
gas atoms are out of control; is compressible
liquid has flow; molecules move somewhat freely
solid not compressible; molecules are packed together
colloid substance that exists in tow states at the same time
plasma hot ionized gas
atomic mass weighted average of all the isotopes in the element; is the decimal number at the bottom of the element's square
mass number number of protons and neutrons in a nucleu
atomic number number of protons; if the atom is stable, the number of electrons equals the number of protons; is the number in the top left corner of the element's square
parts of an atom nucleus, proton, neutron, electron
isotope an atom with an imbalance of protons and neutrons
ion charged particle
periodic table a table of the chemical elements arranged in order of the atomic number in rows.
row the rows across the PT
period or series names for the rows of the PT
group or family names for the columns of the PT
bonding when two atoms atoms share electrons or an atom takes an electron from another atom
covalent bond occurs when two weak atoms share an electron
ionic bond occurs when the valence electrons are transferred
Octet Rule an atom is most stable when it has eight electrons in the last ring. It may steal or share an electron to attain its ground state
Valence electron an electron in the very last ring
electron affinity the energy that is absorbed or released when atoms acquire an additional electron
electronegativity the ability to attract and hold electrons
Created by: mieyebo