Vocab Chem 7 Flashcards
Compounds
A chemical combination of 2 or more different elements and can be broken down into simpler substances
Chemical bond
Force that hold 2 atoms together
Ions
Charged atoms
Valence electrons
Outer most electrons
Cation
Positive ion,
Formed when atom loses one or more electrons
Anion
Negative ion
Gains one or more electrons
Ionic compound
Composed of ions
NaCl
CaBr
Monatomic ion
Has one atom with a charge
H+ N -3 Si +4
Polyatomic ion
Also called what ?
Group of atoms with a charge
SO(4) -2 C2O4 -2
Radical
Oxidation number or valence
The charge of an ion
+1 +4 -3
Chemical nomenclature
Naming of chemical compounds
Magnesium nitride
Binary compound
Compounds with only 2 elements
-Ide
Some radicals can have -ide
Binary acids6
Acids with 2 elements
Has hydro prefix
-ic
Hydro brom ic
Ternary compound
Compounds with 3 elements
K2SO3
Ternary acid
Acids with only 3 different elements
Have hydrogen in front
-ic
H2NO3
Diatomic
Name them 7
Composed of 2 atoms
Hydrogen H2
Oxygen O2
Nitrogen N
Fluorine F
Chlorine Cl
Bromide Br
Iodine I
Hydrate
Compound that has a specific number of water molecules bound to its atom
They attract and hold water molecules
Water of hydration
The water that is in the hydrate
Anhydrous
Without water
Ionic bond
Electrostatic force holding oppositely charged ions together
Crystal lattice
Positive ions are surrounded by negative ions and vice versa
Electrolytes
Conduct electric current when dissolved in water
Lattice energy
Energy required to separate one mole of the ions ionic compound
Formula unit
Simplest ratio of the ions represented in an ionic compound
3 H3PO4
3 is it
