chem again LMAO

d

10^-1

c

10^-2

m

10^-3

µ or mc

10^-6

n

10^-9

da

10¹

h

10²

k

10³

M

10⁶

G

10⁹

fahrenheit to kelvin

[ ( F - 32 ) 5 ] / 9 +273.15

what did the chadwick experiment help discover and how?

neutrons through throwing them at a beryllium plate

what is the atomic number

the number of protons AND number of electrons (separately)

what is the mass number

number of protons added to neutrons

(pro+neu)= mass number

what do protons determine?

the element

which will be bigger: mass number or atomic number>

the mass number

what did JJ thomson help discover and how?

electrons through studied with cathode rays

what did RA millikan help discover and how ?

the charge of electrons through the gold foil experiment

avogadro's number

1 mol = 6.02 × 10²³

what can avogadro's number be used for ?

coversions to atoms, molecules or particles

what forms cations?

metals

what does it mean when an atom is a cation?

it means it has a positive change and it lose electrons

what forms anions?

nonmetals

ammonium

NH₄⁺

chromic

Cr³⁺

cobalt(||) (cobaltous)

Co²⁺

copper(|) (cuprous)

Cu⁺

copper(||) (cupric)

Cu²⁺

iron (||) (ferrous)

Fe²⁺

iron (|||) (ferrie)

Fe³⁺

lead(||) (plumbous)

Pb²⁺

manganese(||) (manganous)

Mn²⁺

mercury(|) (mercurous)

Hg₂²⁺

mercury(||) (mercuric)

Hg²⁺

tin(||) (stannous)

Sn²⁺

carbonate

CO₃^2-

chlorate

ClO₃^-

chloride

Cl^-

chromate

CrO₄^2-

cyanide

CN^-

dichromate

Cr₂O₇^2-

dihydrogen phosphate

H₂PO₄^-

hydrogen bi/carbonate

HCO₃^-

hydrogen phosphate

HPO₄^2-

hydroxide

OH^-

nitrate

NO₃^-

nitride

N^3-

nitrite

NO₂^-

oxide

O^2-

permanganate

MnO₄^-

peroxide

PO₄^3-

sulfate

SO₄^2-

sulfide

S₃^2-

sulfite

SO₃^2-

thiocyanate

SCN^-

ionic compound

combination of a metal and nonmetal

hydrates

ionic compound that have specific number of water molecules attached to them

how do you name a hydrate

1. name ionic compound

2. use prefix for amount of water molecules at the end

3. add “hydrate”