chemistry

ion

a charged atom that either loses or gains electrons

properties of metals

lustrous, conduct heat and electricity ductile and mallable

properties of non metals

not shiny, brittle, does not conduct heat or electricty can be gases liquids or solids

subatomic particles

neutron electron proton

bohr diagram

shows all electrons and shells

lewis dot diagram

only shows valence electrons

postive charged ion

Catons

negative charged ion

anions

atomic number

number of protons

period number

number of electrons shells

isotopes

same element diffrent number of neutrons

polyatomic ion

a group of two or more convalently bonded atoms that acts as one ion.

covalent bond

A covalent bond is the strong attraction formed when two atoms share one or more pairs of outer-shell electrons,

ionic bonds

the strong electrostatic attraction between oppositely charged ions

chemical reaction

a change in which a new substance is formed 

Chemical equation

a shorthand way of describing what happens in a chemical reaction 

produdct

a substance formed as a result of a chemical equation 

Reactant

a substance present at the start of a reaction 

Acid

A substance that produces H+ ions in solution

Base

A substance that produces OH- ions in solution

ionic bonding

the transfer of electrons from a metal atom to a non-metal atom.

covalent bonding

Covalent bonding is the sharing of pairs of electrons between non-metal atoms

Observations

Observations are what you can actually see, hear, or feel during a reaction — NOT the names of chemicals or products