Calculate the densities of Si and GaAs from the lattice constants (Appendix III), atomic weights, and Avogadro's number. Compare the results with densi- ties given in Appendix III. The atomic weights of Si, Ga, and As are 28.1,69.7, and 74.9, respectively.

altitude, density, pressure

air gets less dense the higher the altitude and also the air pressure is less as altitude rises.

2b2t

explanation:

2b2t

b) nuclear ive learned that in a pedtrodic table

idk what is it? is this a question that you know the answer or u dont