The following figures show various stages during the characteristics to the appropriate category. - -
life of a star with the same mass as the Sun. Rank high mass star
the stages based on when they occur, from first to -late in life fuse carbon into heavier elements
last. - -first to last -have higher fusion rate during main sequence life
protostar - end life as a supernova
main sequence g star
red giant low mass star
planetary nebula -the sun is an example
white dwarf -have longer lifetimes
-final corpse is a white dwarf
-end life as a planetary nebula
Assume that all four H-R diagrams below represent a
star in different stages of its life, after it starts to fuse
hydrogen in its core. Rank the HR diagrams based The diagram indicates that the third most abundant
on when each stage occurs, from first to last. - element in the Milky Way Galaxy is _____. - -
-star in the sequence oxygen
a little outside
more outside
then below the line According to the diagram, the approximate
abundance of oxygen atoms in the galaxy is
__________. - -1/1000 that of hydrogen
Match the words in the left-hand column to the
appropriate blank in the sentences in the right-hand
column. Use each word only once. - -dumb According to the diagram, what is the most abundant
element with an atomic number greater than or equal
to 20? - -iron
Provided following are various stages during the life
of a high-mass star. Rank the stages based on when
they occur, from first to last. - -contracting Based on the diagram, which of the following
cloud of dust statements best describes the observed pattern of
protostar abundances for elements with an atomic number
main sequence o star between 6 and 20? - -There is a general trend
red supergiant of decreasing abundance with increasing atomic
supernova number, but elements with even atomic numbers tend
neutron star to be more abundant than those with odd atomic
numbers
Provided following are various elements that can be
produced during fusion in the core of a high mass According to current understanding, the two most
main sequence star. Rank these elements based on abundant elements in the universe were made
when they are produced, from first to last. - - __________. - -in the Big Bang
helium
carbon
oxygen In Part D, you saw that elements with even atomic
iron numbers tend to be more abundant than neighboring
elements with odd atomic numbers. What nuclear
process explains why this is the case? - -
Listed following are characteristics that describe Starting from carbon (atomic number is 6), the most
either high-mass or low-mass stars. Match these common nuclear reactions involve the fusion of an
1/2