Multiple Choice
Observations show that elements with atomic mass numbers divisible by 4 (such as oxygen-16,neon-20,and magnesium-24) tend to be more abundant in the universe than elements with atomic mass numbers in between.Why do we think this is the case?
A) The apparent pattern is thought to be a random coincidence.
B) Elements with atomic mass numbers divisible by 4 tend to be more stable than elements in between.
C) At the end of a high-mass star's life,it produces new elements through a series of helium capture reactions.
D) This pattern in elemental abundances was apparently determined during the first few minutes after the Big Bang.
Correct Answer:

Verified
Correct Answer:
Verified
Q56: There is no limit to the mass
Q78: What is a carbon star?<br>A)a red giant
Q79: What happens when a star exhausts its
Q80: How many helium nuclei fuse together when
Q81: Which of the following statements about various
Q82: What happens when the gravity of a
Q85: You discover a binary star system in
Q86: Why do scientists think that our solar
Q87: Which low-mass star does not have fusion
Q88: Tidal forces are very important to the