Chapter 1&2
What is the study of compositions of matter and the changes it goes through
What is Chemistry ?
what word means indivisible
what is Atomos?
acts as a wave and particle
What is light?
a single pair of electrons is shared
What is Single Covalent Bonds?
chemical bonds that result from the sharing of Valence Electrons
What is Covalent Bonds?
what are 4 ways to speperate a mixture.
what is Filtration,Distilation,Crystalization, Chromatography?
during a chemical reaction the mass of reactants
what is Law of Conservation of Mass?
shoes the valence electrons for an atom
What is Electron dot diagram?
share two pairs of electrons
what is Double Covalent Bonds?
formed when two or more atoms bond covalently
What is Molecule?
looks uniform
what is Homogeneous mixture?
same atomic mass with different neutrons
what is Isotops?
Size of the Atom
what is Atomic Radius?
what is Triple Covalent Bonds?
use electron dot Diagram to show how the electrons are arranged
What is Lewis Structure?
matter that has uniform and definite compsition
what is Pure substance?
a compound always contains the same elements in the same proportions by mass
What is Law of definite Proportions?
relative ability of its atoms to attract electrons in a chemical bond
What is ELectroNegativity?
Metal and non metal bonds
What is Ionic Bonds?
parallel orbitals overlap shared electrons
What is Pi bonds?
study of living things
what is Biology?
total of Protons and Neutrons
What is the MASS number?
energy required to remove an electron from a gaseous atom
What is Ionization Energy?
form an extended 3d array of alternating cations and anions
what is Ionic Compound?
H2,O2,N2,Cl2,I2,F2,Br2
what is Diatomic molecules?