Q6. What is the radius (in cm) of a cylindrical silicon block (density = 2.03 g/cm3) with the height of 2.80 cm to react with 76.0 g of Cr2O3 by the reaction: Si (s) + Cr2O3 (s) → SiO2 (s) + Cr (l)

In chemistry, the type of an atom (what element it is) is determined by: a) the number of protons it contains in its nucleus.b) the number of neutrons it contains in its nucleus.c) the number of protons it has in a cloud around the nucleus.d) the number of neutrons it has in a cloud around the nucleus.e) the number of electrons it exchanges with its neighbors.