Alkali Metals are extremely reactive. Alkaline Earth Metals are soft. Alkali Metals have 1 valence electron, while Alkaline Earth Metals have 2 valence electrons. Alkali metals are more dense.
The rule of exponential multiplication is (a^x)*(a^y)=a^(x+y) using this with your expression, we can do (10^1)*(10^3)*(10^2)=10^(1+3+2)=10^6 Final answer: 10^6 or 1 million Hope I helped :)
