Neutral electrons do exist, they are
called electron neutrinos. They are part of
what is called the "Standard Model" particle
The Standard Model says that are a limited set
of fundamental particles that make up all the
matter and interactions in the universe.
Electrons and electron neutrinos are part of
the standard model, as well as quarks,
which make up the nucleus of atoms, and
Photons are actually neutral charge, but
they do mediate the interactions between
positive and negative charges.
The Sun is made up of mostly hydrogen and
helium and is currently undergoing fusion. When
all the hydrogen is consumed, it will turn into a
white dwarf, which is mostly carbon and oxygen.
Stars that are bigger than our Sun can create a
supernova when their fusion stops, which leaves
behind a neutron star. A neutron star is
much smaller than earth, but can have about as
much mass as our Sun. This means it is super
dense! Neutron stars are very hot on the
surface (600,000 K), but are not undergoing
fusion, so they are not producing energy.
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