Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
14 Cards in this Set
- Front
- Back
chemical symbol |
a 1 and 2 letter abbreviation for an element |
|
chemical formula |
a combination of chemical symbols and numbers used to represent a compound or indicate the number of atoms present in a molecule |
|
subscript |
the number after a symbol that tells how many atoms of an element are in each molecule |
|
binary compunds |
compounds made of only 2 elements |
|
chemical bond |
a strong force of attraction that holds the atoms of a substance together |
|
valence electrons |
the electrons in the outermost energy level of an atom, which determine how an atom bonds with other atoms |
|
octet rule |
the tendency of atoms to want 8 electrons in their outer energy level |
|
noble gases |
the elements in the far right column of the periodic table which have full outer energy levels and will not combine with other elements under normal conditions |
|
covalent bonds |
a bond in which valence electrons are shared between atoms |
|
diatomic molecule |
a molecule made of 2 atoms of the same element |
|
electron dot diagram |
a model in which the chemical symbol represents the nucleus and all the filled inner energy levels of an atoms and one dot represents each valence electron |
|
iln |
a charged particle |
|
ionic bond |
the force of attraction between oppositely charged ions |
|
ionic compounds |
compounds made of ions held together by electrostatic forces |