- Why phosphorus is in period 3 in periodic table?

Discover Questions

7^(x+1) + 7^x + 7^(x-1) = 399, what is x? Verify that M(u,v)=A +u(B-A) +v(C -A) ( A,B,C vectors) is a parametric representation of surface of the triangle A(1,0,0) B(0,-1,2) C(0,2,1)? If 7.46g of CrCl3 are dissolved in enough water to make 385 mL of solution, what is the molarity of the resulting solution? Find all solutions to the following system of nonlinear equations.
(x − 2)^2 + y ^2 = 20
(x + 2)^2 + y^ 2 = 20? What would happen if I caught alien war ships and planes and went to Jupiter could I used to save people people lives.?