SP-345 Evolution of the Solar System

 

FIGURE 21.5.1.

 

FIGURE 21.5.1.- The gravitational energy [Greek letter] capital gamma
and ionization potential of the most abundant elements. Roman numerals refer to row in the periodic table, with "III" including the fourth row. All elements in a band have approximately the same gravitational energy and vion, as discussed in secs. 21.4 and 21.5. Minor and trace elements are indicated, respectively, by parentheses and brackets.
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