How does nuclear energy affect the economy?

Nuclear power plants are expensive to build but relatively cheap to run. In many places, nuclear energy is competitive with fossil fuels as a means of electricity generation. ... If the social, health and environmental costs of fossil fuels are also taken into account, the competitiveness of nuclear power is improved.

a corroding iron, if that's one of your choices

atomic mass = 39

number of neutrons = 20

number of protons= 19

electronic configuration = 1s2 2s2 2p6 3s2 3p6 4s1

the number of electron in first shell = 2

number of electrons in n=3 shell = 8