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 Study Terms

TermDefinition
An atom with a positive or negative charge ion
Atoms with the same number of protons, but different numbers of neutrons. isotope
The number that is used to identify an atom atomic number
Negatively charged particles that form a cloud around the nucleus of an atom electron
A column on the periodic table composed of atoms with similar properties group
Different regions around the nucleus of an atom where an electron is likely to be found energy levels
A number that represents the charge an atom will have with a full valence. oxidation number
An atom that has lost electrons so it has a positive charge. cation
The process of splitting the nucleus of an atom fission
The highest energy level in which electrons are found on a given atom valence
A number that represents the average amount of protons and neutrons combined for a given element. atomic mass
The smallest unit of a compound; formed when atoms bond molecule
This feature of the periodic table correlates with the number of energy levels in an atom. periods
Hard, usually solid elements found on the left side of the periodic table that tend to lose electrons metals
Elements that have characteristics of both metals and nonmetals metalloids
An atom with a negative charge due to gaining extra electrons anion
A type of radiation that is highly ionizing, but has very little penetration. alpha
The process of one element changing into another by releasing particles from its nucleus. radioactive decay
Rule stating that atoms are most stable when they have 8 electrons in their valence octet
Type of radiation with low ionization but high penetration gamma
An unstable form of an element due to its neutrons which will change into another element over time radioisotope
Source of energy due to combining the nucleus of two small atoms to form a larger one. fusion
Form of radiation produced when a proton changes into a neutron and releases an electron beta
A model of an atom which focuses on showing electrons on all of an atom’s energy levels Bohr model
Usually one or two letters that represent and certain element chemical symbol
A form of notation that represents a molecule chemical formula
A molecule which is neutral, but has a positive side and a negative side. polar
A force which works at close distances to bind the nucleus of an atom together strong nuclear force
The process of measuring the ratio of unstable isotopes to the stable form to determine the time since it formed. radiometric dating
A family of elements which are not reactive noble gases
The amount of time it takes for half of the mass of a radioactive isotope to decay into a more stable form. half-life
Created by: jaredlovering