187.7000000 is the answer.
The correct answer is- Proton
A proton is approximately 2,000 times heavier than an electron. In most cases, atoms have an equal number of protons and electrons. However, because protons are so much heavier than electrons, the electrons do not make a significant contribution to the mass of an atom.
Societies can become more environmentally sustainable through economic development dedicated to improving the quality of life for everyone without degrading the earth's life-support systems.
