QtOJY'liC. c;,trllctur• • ~QliO !!Ji ~llell/ t\'lOTQ eO iOYlc;
pro-ton 1 mr , ti , rno11ve cl'lcnqtti '@11-i on....a - veiy cnorqeGI ionc;,
neutron ! rM,• 1,rt1011ve rhc:Hqe o
ucc.trori, IYIY' l/2000 , ft\(.ltlVe Ch(HQC -1
1 co, 1-
numnn o, protons.ne\/er cnanqe~
GA M -11om"1 of the c;,ame ue rvHn-t with a ditterrn~ nvmver
Of ne u I ronc; a.no. the c;a me num~o o, pro1onc; in the nu l 1e us
one.I tne some ettttronit confiQuro tion
._.... h4\Jt tnt 1,ome rea ctiviry, G1iffoen1 phyc,,icc.1 ptopert ie, Oli
sa mt e· nurrit>u
i....-+ hi()l'le mos.(j isotope =hiQY\trMPt,bpt dens.itie~
1> ·vapouri!,01ion- vocuvrn c;o ionc; con pac;i; tnrouqn ~ithovt
nir
i) iOnir,ation- x,q,tt- -t"'•1q, -t1i-
1) uccncro tion- neqa11vtl'/ cncngfcl plCnec; . ~peed
( HAPTER. 2
deptnOs on Moss,in~nrnv propor11ono I mODVl-~ 2
1.1) cteflecti on~ maqotti't Ntla, curved poth
i;) cttttction
- l A'< oi,und<.1nce) , 16~ (.lblAncJOllC_;}
tota1 auvndance
from gro p h ; - now l'Y'lony i!,otopc~
- most o»undon1 ·
c.n:a.,:t!l;t':;i:so-t&J),i.-M:O?j • moc;, c; of o n i so 1 o p e , t Io11 ve 1o ;\ t n
,he mass o< o "con)on otom
u;t11f1vt ailim(t ma~cn ~eiQhttcl mean moc;c; Of an atom Of a
hemerii ,ttotive 10 1111 th 1ne masc; Of on 010m o-r an eiement n
1floiiV( iO 1 1111n tnemosc; 01 o''c o,orn to"inQinto acc,unt
each i;otope .. 1heir al?unctonce