The most abundant elements in the universe, as revealed by spectroscopic analysis, in order of decreasing abundance (number of atoms) are:
A) nitrogen, oxygen, carbon, and helium.
B) hydrogen, helium, oxygen, and carbon.
C) helium, carbon, oxygen, and hydrogen.
D) hydrogen, helium, oxygen, and nitrogen.
Correct Answer:
Verified
Q1: Table 8-1 of Universe, 11th ed (in
Q3: The fractional abundance of hydrogen by mass
Q4: Which of these chemical elements is relatively
Q5: How has the present mix of chemical
Q6: Carbon atoms make up much of the
Q7: Just after the original Big Bang the
Q8: Figure 8-4 of Universe, 11th ed. shows
Q9: Our solar system seems to have formed
Q10: Suppose the ratio of radiogenic 40K to
Q11: Suppose the ratio of radiogenic 238U to
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