Shared Flashcard Set

Details

Chapter 7
Compound Make up
28
Chemistry
10th Grade
11/10/2008

Additional Chemistry Flashcards

 


 

Cards

Term
reactivity depends on ---- & is why-----
Definition
valence electrons...why similar groups have similar properties.
Term
chemical bonds
3 types
Definition
force that holds two atoms together
attaction between + & - ions
'' between + nucleus to a - nucleus

types-
ionic
metallic
covelant
Term
cation
Definition
positive ion
Term
anions
Definition
lose electrons
end in -ide
Term
electron affinity
Definition
energy realeased when forming a negetive ion
Term
ionization energy
Definition
energy added when forming a positive ion
Term
ionic bond
Definition
electrostatic force holds opposite ions together
Term
binary compound
Definition
2 elements
Term
salt
Definition
metal + nonmetal
Term
oxide
Definition
metal+ oxygen
Term
ionic crystal
Definition
+ and - ions are packed in a regularly repeating pattern
no singular units
Term
crystal lattice
Definition
structure:
positive and negative ions surround eachother
Term
ionic crystal properties
Definition
high melting points
brttle, hard, rigid
non conductor (tightly paked)
conduct in water (electrolyte)
Term
exothermic
Definition
putting off energy
forming ionic compounds is always exothermic
Term
endothermic
Definition
absorb energy
Term
Lattice energy
Definition
energy required to seperate an ionic bond
endothermic
"put released energy back in bond to seperate ions"
more negetive lattice= stronger force
smaller ion-more negative
larger + or - charges = more negative lattice
Term
formula unit
Definition
the simplest ratio of ions represented in an ionic compound
Term
oxidation #
Definition
the charge of an ion (2-,+)
rep elements: # of valence electrons it will form= o #
trans switch sometimes
Term
SOC
Definition
Symbol
Oxidation #
Cross it
charges=0
metal 1st
Lowest ratio possible
Term
naming chemicals
Definition
metal (cation)+
[nonmetal (anion)+ ide]
Term
monoatomic
Definition
a single atom ion
Term
polyatomic
name it
Definition
ions made up of more than one ion
name= cation+polyatomic ion
Al2(CO3)2
Term
halogens naming
Definition
per---ate= most oxygen
-ate= 1 less
Term
electron sea model
Definition
valence electrons are shared
delocalised-mobile elrctrons
cations
Term
metallic bond
Definition
cation atracted to delocalized electrons
Term
delocalized electrons
Definition
incresed #= harder
outer s and inner d electrons
Term
alloy
Definition
mixture of metals
form w/ similar size or much smaller
Term
interstitial
Definition
no replacing but forming w/ ions in between
Supporting users have an ad free experience!