[DOC] [TLE] Red giant - Wikipedia [PAR] A red giant is a luminous giant star of low or intermediate mass (roughly 0.38 
solar masses ... Red giants are stars that have exhausted the supply of hydrogen 
in their cores and ... These elements are all uniformly mixed throughout the star. 
... When the star exhausts the hydrogen fuel in its core, nuclear reactions can no
... [DOC] [TLE] Stellar evolution - Wikipedia [PAR] Stellar evolution is the process by which a star changes over the course of time. 
Depending on the mass of the star, its lifetime can range from a few million ... 
Once a star like the Sun has exhausted its nuclear fuel, its core collapses into a 
.... Red giant branch stars with a degenerate helium core all reach the tip with 
very... [DOC] [TLE] Star Formation - cK-12 [PAR] A blue giant star has exhausted its hydrogen fuel and is in a transitional phase. 
When the light elements are mostly used up, the star can no longer resist gravity 
and starts to ... Eventually, a red giant burns up all of the helium in its core. [DOC] [TLE] Red Giant - body, process, Earth, life, energy, reaction, gas, carbon [PAR] A red giant is a star that has exhausted the primary supply of hydrogen fuel at ... 
An average-sized star like our Sun will spend the final 10 percent of its life as a 
red giant. ... With no hydrogen left at the core of a star to fuel the nuclear reaction 
that ... lighter elements into one nucleus of a heavier element; the process stars 
use... [DOC] [TLE] Stars - Celestial Objects on Sea and Sky [PAR] Stars have fascinated us since the beginning of history. ... When the core 
becomes primarily iron, the star's nuclear reaction can no ... Stars begin their 
lives as clouds of dust and gas called nebulae. ... It will expand into what is 
known as a red giant. ... It is this cycle of stellar evolution that produces all of the 
heavy elements... [DOC] [TLE] Red Giant Star - Encyclopedia.com [PAR] A red giant is a star that has exhausted the primary supply of hydrogen fuel at its 
core and is now using another element such as helium as the fuel for its ... 
reaction, which occurs in all stars, is the "easiest" one for a star to initiate. ... stars 
never gets a chance to collect at the core, where it might be used as a new fuel 
source. [DOC] [TLE] Red Giant Star - Encyclopedia.com [PAR] Definition of Red Giant Star  Our online dictionary has Red Giant Star ... a type 
of star that has exhausted the primary supply of hydrogen fuel at its core and is 
now using another element such as helium as the fuel for its ... All that will be left 
is the tiny core, made of carbon and oxygen, the ashes of the final fusion 
processes. [DOC] [TLE] Chapter 13 The Life of a Star The Life of a Star ... - Relativity Group [PAR] Once its fuel is exhausted, the star dies  quietly into a white dwarf or ... of stars 
and the elements vital to human life. The Life of a ... Fusing hydrogen into helium 
in its core, the Sun will reside on the ... once again transform into a red giant, but 
only bigger than before ... All other things being equal, a more massive star has a
. [DOC] [TLE] The Life Cycles of Stars - Imagine the Universe! - NASA [PAR] Once a medium size star (such as our Sun) has reached the red giant phase, its 
... it does not permit its atoms to fuse into heavier elements) and fusion ceases. ... 
Unlike in smaller stars, where the core becomes essentially all carbon and ... A 
star like our Sun will become a white dwarf when it has exhausted its nuclear fuel
. [DOC] [TLE] What is the Life Cycle Of The Sun? - Universe Today [PAR] Like all stars, our Sun has a life-cycle that began with its birth (4.57 billion ... For 
the next 100 million years, it will continue to burn helium in its core until it is

Question: A red giant star has exhausted all of this element used as fuel in its core
Answer: hydrogen