Principally chemists and physicists. However, the subject is also of interest to meteorologists (clouds have interesting structure, for instance), and biologists (the structures of DNA and other biologically significant chemicals are important), amongst others.
A chemist could possibly study the structure of matter.
a chemist
A scientist is someone who studies science.
Particle physicists. or Quantum Physicists or Atomic Physicists
A scientist who studies anatomy is called a anatomist.
A scientist that studies bears would be called an ursinologist.
Virology is the study of viruses and their evolution, structure, classification. It also is complexes of nuclies acids and proteins that help all living cells.
a chemist
A chemist could possibly study the structure of matter.
It is called Physic It's called a chemist
A physicist studies energy and matter.
A scientist who studies the changes of the states of matter is a scientist.
geologist
A chemist studies structure of matter.
physicist.
Chemist or Physicist
physicist
cryogenist
Telescope