Study your flashcards anywhere!

Download the official Cram app for free >

  • Shuffle
    Toggle On
    Toggle Off
  • Alphabetize
    Toggle On
    Toggle Off
  • Front First
    Toggle On
    Toggle Off
  • Both Sides
    Toggle On
    Toggle Off
  • Read
    Toggle On
    Toggle Off
Reading...
Front

How to study your flashcards.

Right/Left arrow keys: Navigate between flashcards.right arrow keyleft arrow key

Up/Down arrow keys: Flip the card between the front and back.down keyup key

H key: Show hint (3rd side).h key

A key: Read text to speech.a key

image

Play button

image

Play button

image

Progress

1/69

Click to flip

69 Cards in this Set

  • Front
  • Back
atom
The smallest particle where a substance retains its identity.
Its mass is measure in atomic mass units (AMU.)
electron
the negativley charged particle in a atom
synthesis reaction
two or more elements come together to form a compound.
noble gas
an element in group 18 that is unreactive beacuse it has a full set of valence electrons
electron arrangment
all atoms have 2 electrons in the 1st level, and up to eight in each subsqeunt level. Group 1 has 1 valence lectrons, group 2, 2, group 3-12 1or 2 because of backfiling and gropu 14- 18 to dtriem the amount of valence lectrons drop the 1.
chromatography
study of sepration of inks
catalyst
something that speeds up the rate of reaction such an enzyme
endothermic
any reaction where enegry is absorbed
valence electron
number of electrons in the outermost level, this determines an element's reactivity
base
a substance that is slippery, bitter and enlarges that number of hydroxide ions. OH-
coefficent
2CO
The two is a coffeicent
diatomic molecule
The smallest covalent compound, any element bonded to itself. They are iodine, flourine, chlorine, hydrogen, heluim, and oxygen.
molecule
the smallest particle in a covalent compound
covalent bond
When two non metals nuclei are attracted and there electrons are shared.
decomposition reaction
when a compound breaks into simpler substances.
element
a pure substance
electron shell
the outermost shell of an atom
ionic compounds
compounds make up of ionic bonds.
inhibitor
something that stops a chemical reaction
reactents
the left side of a chemical equation
crystal lattice
the pattern that ionic compounds are arranged in.
salt
a substance formed when a acid and base neutralize each other
subscript
the number below the chemical symbol
activation energy
the energy needed to start the reaction
proton
the part of an atom with a postive charge
ionic bond
a bond between a metal and a non metal when electrons are transferd.
single and double replacement reactions
where different atoms switch places in a compound
compound
2 or more elemnts combined by chemical means
isotope
an atom with an abnormal amount of neutrons
law of conservation of mass
matter cannot be created nor destroyed in reactions
exothermic
an reaction where energry is given off.
product
the right side of a chemical equation
metallic bond
a bond between 2 metals
organic
anything that is carbon based
conductivity
how well elements conduct electric current
polarity
a non polar has both parts equally sharing electrons, a polar compound does not.
neutron
a nuetral particle
ion
a particle with a charge
halogen
any element in group 17
acid
a sour substance with a Ph of less than 7
inorganic compound
a non carbon based compound
colliod
a type of mixture with dispersted particles that don't settle out
solute
something that is dissolved to form a solution
solvent
substance in which a solute is dissolved
suspension
a mixture with dispersted particles that settle out
saturated solution
a solution with all the material it can hold
boiling
exothermic change, a form of vaporization
Boyle's Law
If the amount of gas is fixed at one temperature then as the volume goes up the pressure goes down. (inverse relationship)
Charles's law
If the amount of gas and pressure is constant the volume goes up as the temperature goes up.
condesation
an endothermic change when a gas goes to a liquid.
evaporation
a exothermic a type of vaporization
gas
One of 4 states of matter, are almost completely apart, no definent shape or volume
liquid
the particles are starting to move a defintie volume but no definite shape.
plasma
most abudant state, no definite shape or volume, particles completely broken apart, made of electrons and ions.
solid
state of matter with a definite volume and shape
sublimation
an exothermic change going from a solid to a gas.
surface tension
force causing the formation of water droplets
viscosity
how much a liquid resists flow
chemical change
a change in which a substance can not be reversed by physical changes and has new properties.
ductility
abiltiy to be pulled into wire
physical change
a change that affects a physical aspect such as size
solubility
how well something mixes
What was Dalton's major acccomplishment?
He created the atomic theory.
What did Democritus do?
He introduced the idea of an atom.
What did Rutheford do?
He came up with the nucleus.
What did Bohr do?
He came up with the idea that elctrons jump from level to level.
What did Thompson do?
He came up with the plum pudding model.
Mendeleev major accomplishment was?
He came up with the peoridic table of elements.
Mosely's major accomplishment was?
He organized the peoridic table.