Answer:
Electrons are sub-atomic particles found in the orbitals (shells, electron cloud) of an atom. They have a negative charge and a mass significantly smaller than a proton or a neutron.
Explanation:
Describe electrons.
Location:
electron cloud
Charge:
negative
Mass:
one-two thousandths amu
The answer is osteoclasts
Heterogeneous mixtures are substances not mixed together.
I hope that is right
1977 is when people first knew about archaebacteria
i don't really know but good luck
