They are fundamental particles.
Electrons in a covalent bond come from the highest occupied energy level.
No. But beta particles can either be electrons, or anti-electrons.
from everywhere
Electrons from the Krebs cycle to convert ADP into ATP.
The electrons come from her own body. I can't explain it, but all I know is that is the answer. I'm sorry.
If you come in contact with high speed electrons from an electron gun, you will get an electrical shock.
In a battery, the chemical reaction supplies excess electrons.
The supply of electrons in photosynthesis comes from water.
They don't. Electrons come and electrons go, and the nucleus doesn't much care.Radioactivity is the process of the nucleusfalling apart.
If you are filling in the electrons it will be in the 4d orbital. If you are removing electrons the first to come out is in the 5s electrons since transition metals lose 's' electrons before 'd' electrons
Electrons
the sun