gen chem chapter 1-3 kaplan book

atomic number vs atomic weight

atomic number—> number of protons and neutrons

atomic weight—> mass of all isotopes in a weighted average

electrons that go from lower energy shells to higher energy shells…

get AHED

Absorb light

Higher potential

Excited

Distant from the nucleus

higher energy shells are…

further from the nucleus

Hunds rule

filling of electron shells schoolbus style

planks equation

E= energy of photon emitted

h= planks constant 6.6×10^-34

nu= frequency of radiation

planks equation with wavelength

E= energy of photon emitted

h= planks constant 6.6×10^-34

c= speed of light 3×10^18

lambda= wavelength of radiation

picture periodic table with metaloids, metals, and nonmetals labelled

picture periodic trends

valence electrons vs columns

coordinate covalent bond

both shared electrons come from the same atom, ex F3B-NH3

octet rule exception

all atoms past period 3 can accomodate more than 4 bonds

formal charge equation