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20 Cards in this Set

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What are valance electrons

electrons in the highest occupied energy level of an element

How do you determine the number of valance electrons

look at the group number (remove A) and it is the # of valance electron OR if using 1-18, from families 13-18, drop the one so 18 would be 8 electrons

what are usually the only electrons involved in a chemical reaction

valance electrons

what is the Luis Dot diagram

a dot diagram made from the valance electrons

What is the Octet Rule

In forming compounds, elements try to achieve the electron configuration of the Noble Gases- as a result, most electrons try to form 8 electrons in their outermost energy level

What do metals do to achieve a "full" outermost level like nobel gases

lose their electrons

What do nonmetals do to achieve a "full" outermost level like nobel gases

gain electrons

wat will metals do to form a positive charged ion or cation

loes electrons

how are transition metals different than alkaline and alkaline earth metals

they will form more than one ion (iron II and iron III)

Why isn't transition metals electron configuration the same as nobel gases

they don't follow the octet rule

how are negatively charged ions, aka anions, formed

they gain electrons

what is the common suffix for anions

-ide

what are halides

the halogen group that forms negative ions

What element is commonly a form of an anion

Oxygen (takes on 2 electrons to have a negative 2 charge)

What are polyatomic ions

covalently bonded atoms that act as anions

What are ionic compounds considered to be

electrically neutral even though they are made up of charged atoms

What are ionic compounds bonds made up of and what is it

ELECTROSTATIC CHARGE-- positive charge attracts negative charge

What are some properties of ion compounds

usually crystallized at room temp


high melting points

what is the coordination number of an ion

the number of opposite charged ions that surround an anion in a crystal

how do ionic compounds conduct electricity

if they are melted or dissolved in water