chaper 2:1,2
Terms
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- chemical element
- a pure substance that consists entirely of one type of atom
- Ag
- Silver
- Cu
- Copper
- [H+]>[OH-]
- acid
- hydrogen ion
- OH- (negative charge)
- hydroxide ion
- -OH (empty bond)
- colloid (cloudy)
- one substance is permanently suspended in another
- covalent bond
- when electrons are shared between atoms
- Mn
- Manganese
- inert
- an atom with its last energy level naturally filled- non reactive
- molecule
- the smallest unit of most compounds
- suspension (clear)
- one substance is temporarily suspended in another
- Br
- Bromine
- ionic bond
- formed when one or more electrons are transferred from one atom to another
- structural formula
- how the atoms are arranged
- Sn
- Tin
- S
- Sulfur
- Na
- Sodium
- Be
- Beryllium
- I
- Iodine
- O
- Oxygen
- isotopes
- atoms of the same element hat differ in the number of neutrons they contain
- Zn
- Zinc
- Co
- Cobalt
- # of bonds =
- the number of electrons (lost gained, or shared)
- Ba
- Barium
- Fe
- Iron
- buffers
- weak acids or bases that can react with strong acids or bases to prevent sharp sudden changes in pH
- atom
- the basic unit of matter
- molecular formula
- 3(H2SO4)
- mixture
- a material composed o two or more elements or compounds that are physically mixed together but not chemically combined
- electron
- is a negatively charged particle with 1/1840 the mass of a proton
- Mg
- Magnesium
- nucleus
- which is at the center of the atom
- Ca
- Calcium
- ions
- positively and negatively charged atoms
- proton
- positively charged
- Kr
- Kryptonite
- water
- universal solvent
- Pu
- Plutonium
- F
- Fluorine
- [H+]<[OH-]
- base (alkaline)
- Ra
- Radium
- K
- Potassium
- compound
- a substance formed by the chemical combination of two or more elements in definite properties
- Ar
- Arsenic
- radio isotopes
- radio active isotope
- H
- hydrogen
- Li
- lithium
- P
- Phosphorous
- solute
- the substance that is dissolved (salt)
- Ne
- Neon
- B
- Boron
- solution
- one substance is dissolved in another
- C
- Carbon
- Xe
- Xenon
- neutron
- neutrally charged
- solvent
- the substance in which the solute dissolves (water)
- N
- Nitrogen
- Sb
- Anitomy
- cohesion
- an attraction between molecules of the same substances
- Pb
- Lead
- Au
- Gold
- Cs
- Cesium
- [H+]=[OH-]
- neutral
- adhesion
- an attraction between molecules of different substances
- van der Waals forces
- a slight attraction that develops between molecules
- Si
- Silicon
- Al
- Aluminum
- Pt
- Platinum
- He
- Helium