Which waves have the longest wavelength and lowest energy on the electromagnetic spectrum?

a.) x-rays
b.) infrared
c.) radio
d.) gamma rays

Which waves have the longest wavelength and lowest energy on the electromagnetic spectrum?
a.) X-Rays b.) infrared c.) radio d.) gamma rays

If a hydrogen atom is neutral, it must also have  one electron. an oxygen atom (o) has an atomic number of eight (8). this means a neutral oxygen atom has eight protons and eight electrons. the element actium (ac) has an atomic number of 89, so it has 89 protons and 89 electrons in a neutral atom