How are radioactive isotopes used to determine the ages of stars and galaxies?

... nucleus, releasing energy. The sun's core is a natural fusion reactor. Before the sun formed, it was a cloud of gas mostly made up of hydrogen and some helium. The large amounts of proteoglycan and water present in the nucleus make it ... Prolonged bed rest (up to 32 hours) does not significantly increase ... Mar 22, 2019 ... Except it doesn't … you can make the queenright nuc up in a full hive, but use a dummy board to restrict their space. This isn't ideal as ... However, while the lack of a nucleus makes a red blood cell more flexible ... The percentage of whole blood volume that is made up of red blood cells ... Jan 5, 2022 ... They can. According to the current understanding of atomic structure, electrons typically do not exist inside the nucleus of an atom. This is ... •​ Nuclear Fission involves the breaking up of large nuclei to smaller nuclei. link. •​ Nuclear Fusion is the energy-producing process, which takes place ... Atoms can join together to form molecules, which make up most objects. ... Nuclei are made of positively charged protons and electrically neutral neutrons ... Apr 16, 2013 ... Neutrons and protons that make up the nucleus of an atom are bound ... The problem is that what constitutes "significant" is open to ... Quarks make up protons and neutrons, which, in turn, make up an atom's nucleus. Each proton and each neutron contains three quarks. A quark is a fast-moving ... The nucleus is a small egg-shaped structure inside the cell which ... Bones and teeth, hair and earlobes, muscles and blood, are all made up of proteins.