Atoms
Electrons are found in
What is electron cloud
Mendeleev created
what is the periodic table
The process in witch atoms are rearangged to produce new substances
What is chemical reactions
what is the chemical symbal for lead
Pb
CaO
what is 1 calcium, 1 oxygen
Negitivly charged particles are
What is electrons
The number above the chemical symbol
What is atomic number
uses chemical symbols and numbers to repersent a given substance
What is chemical formulas
how many protons are in copper
what is 29
MgCl2
What is magnessium 1, clohrine 2
Democritus found
What is the atom
good conductors and are very shiny
Matter is not created nor destroyed
The atomic number of neon
What is 10
NaOH
1 sodium, 1 oxygen
Chadwick discoverd that the nucleus contains uncharged particles
What is Neutrons
each vertical colume
What is a group
The chemical reactions that need energy
What is endothermic reactions
The atomic number of silver
What is 47
3Br2
John Dalton created
What is atomic theroy
each horizontal row of elements on the table
What is a period
energy can not be created nor destroyed
What is the law if conservation energy
The 79 element
What is gold
CaCO2
What is 1 calcium, 1 carbon, 3 oxygen