Explain all answers clearly, with complete sentences and proper essay structure if needed. An asterisk(*) designates a quantitative problem, for which you should show all your work.
Raft Elements. Lithium, beryllium and boron are elements with atomic number 3, 4, and 5, respectively. Despite their being three of the five simplest elements, Figure 9.19 shows that they are rare compared to many heavier elements. Suggest a reason for their rarity. (Hint: Consider the process by which helium fuses into carbon.
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COSMIC PERSP.FUND.-MASTERING ASTRONOMY
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