Left side metals right side non metals. arrganged in groups (columns) and periods (rows), each group tells you amount of valence electrons
Because the earth wouldn't be able to exist without the help of the sun, the sun is essential for earth.
Answer:
I believe it is the overseer of the operation
If the bonds are held together tightly, as an ionic bond or even a covalent bond, there will need to be a strong force to separate those bonds. This would by why their would be a high melting point. Another reason would be re-activity. <span />
I believe the answer is A. Iron
