name= calcium
atomic mass= 40.078 atomic mass unit
no of protons= 20
no of electrons=20
Answer:
Scientific laws or laws of science are statements, based on repeated experiments or observations, that describe or predict a range of natural phenomena. The term law has diverse usage in many cases across all fields of natural science.
Explanation:
I hope this helps
C. rusting is the correct answer
The answer should be D) electrical
He used a magnet to find that the negatively charged particles to be smaller then the atom.
He discovered electrons.