Question

NEED HELP IN MATH :)

Answer 1

`(3.4\cdot10^(-25))/(1.7\cdot10^(-27))=(3.4)/(1.7)\cdot10^(-25-(-27))\\\\=2\cdot10^(-25+27)=2\cdot10^2=2\cdot100=200`
A lead atom has about 200 times more mass.

Used:

`(a^n)/(a^m)=a^(n-m)`