is the Calcium
because the calcium in group two which group two has 2 electron and also calcium and Potassium 4s sub level group potassium has 1 electron. :)
Density= mass/ volume
So density = 99/10= 9.9g/cm^3
Hope this helps!! xx
1. Only particles in the solid state are not in motion 2. The particles of a solid have less energy than gas 3. In a glass of iced tea the sugar in iced tea are the solvent and the water is the solute.
Answer:
Sun at the center.
Explanation:
The actual dictionary definition of Heliocentric defines it as, "Heliocentrism is the astronomical model in which the Earth and planets revolve around the Sun at the center of the Solar System. Historically, heliocentrism was opposed to geocentrism, which placed the Earth at the center."
