The radioactive decay of unstable isotopes continually generates new energy within Earth's crust and mantle, providing the primary source of the heat that drives mantle convection. Plate tectonics can be viewed as the surface expression of mantle convection.
Answer:
Calcium atoms have smaller radii than potassium atoms since calcium atoms have a greater nuclear charge. Each calcium atom will be closer to the delocalized electrons. Thus, the bonds in calcium will be stronger than that in potassium.
Explanation:
1000 is the answer to the queshtion
a thing, especially a trend or fact, that indicates the state or level of something.
A base is a <span>compound that turns litmus blue and is often found in soaps and detergents. Laundry detergent and dish soap contain bases.</span>
