<span>Na is the chemical symbol for sodium. Na+ is formed when sodium loses an electron from its outer shell (the number of electrons and protons is now unbalanced, giving an overall positive charge) and becomes a sodium ion. Losing an electron happens when a metal reacts with a non metal.</span>
The 3 types of scientific investigation are correlative,comparative, and descriptive
Answer:
The study of anything basically. It is learing new things by observation, experiments, facts, principle, and hypothesis.
Answer:
You can measure mineral hardness with The Mohs' Scale.
Hope this helped :)
How to negative a sentence
