Summary IB Chemistry Topic 2/12 Atomic Structure Notes

atomic structure




÷←.gµfM
.:•mm•i"÷
ANEMIA BÑ$* MANIKIN ☒Ñ↑
" "
""
-
showed thatatomshaveanudeus


.
-




alphapartidesshottowardsshatofgoldfoil
fluoreaantsoreen surrounding goldfoilflasheduhenalphapartideshitit
ok
µh¥¥
-




*"

prediction particles wouldn't get deflated
-

:




-
small % of particles deflected at
angles > 90°
atoms have
mostly empty space waitin
atimshaneanvae.us /positive) some




%µ3•ÑM☒ HMMM THINE


PARTICLE Retatiremasg Rᵈᵈ%HArqe Mass # -


sum
of # of#wtms innudeus

Proton I
+1 Atomic # -


# ofpnto-sinnvde.us/samease-)
I 0
Neutron

Electron to negligible _



,

2
Ay

atomsofsameebmenttsamett-pntnsbnt-dit-t .mn
Isotopes -




MASS SPECTROMY

-



masssper : instrument to measure indmassofatrms
◦
chemical properties depend onoutershdlofé separates indisotopesfnmsampkofatomsldeterminesmattofealh
-




same for isotopes


physical properties depend
◦
on nudes

diff for isotopes mznentron # ATOMIC MASS CALCULATION
e.
g- density rateof diffusion
melting boiling point 1-41
-




,
, ,



man
Ar=
www.sotopicmassj/g%abundana)t.--.-


?⃝