Chemical Bonding Flashcards
1
Q
Compound
A
Substance that is made up of two or more different elements combined together chemically
2
Q
Chemical bonds
A
When elements combine to form compounds, there must be some attractive force that holds the atoms together
3
Q
Octet rule
A
When bonding occurs, atoms tend to reach an electron arrangement with eight electrons in the outermost energy level
4
Q
Noble gases reactivity
A
Very unreactive - inert gases
Consist of single atoms
Do not react as they have a stable electron configuration (8electrins on the outermost shell except helium with2 )
5
Q
Octet rule exceptions
A
Transition metals - many of their compounds can have more or less than 8 electrons in the outermost shell
Elements near helium in periodic table - tend to achieve 2 electrons in outer shell except
