Table 7: Initial chemical composition.
Element Mass fraction
H ...... $7.03\times 10^{-1}$
$^{4}\rm {He}$a ...... $2.7995\times 10^{-1}$
12Cb ...... $2.935\times 10^{-3}$
N ...... $9.000\times 10^{-4}$
O ...... $8.189\times 10^{-3}$
Ne ...... $1.675\times 10^{-3}$
Na ...... $3.396\times 10^{-5}$
Mg ...... $6.377\times 10^{-4}$
Al ...... $5.519\times 10^{-5}$
Si ...... $6.878\times 10^{-4}$
P ...... $5.944\times 10^{-6}$
S ...... $3.592\times 10^{-4}$
Cl ...... $7.642\times 10^{-6}$
Ar ...... $9.170\times 10^{-5}$
K ...... $3.396\times 10^{-6}$
Ca ...... $6.368\times 10^{-5}$
Ti ...... $3.396\times 10^{-6}$
Cr ...... $1.698\times 10^{-5}$
Mn ...... $9.340\times 10^{-6}$
Fe ...... $1.219\times 10^{-3}$
Ni ...... $7.557\times 10^{-5}$

a $^{3}{\rm He}=5.000$ $\times$ 10-5.
b 13C is 1% of 12C.


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