Compared to ultraviolet light, an electromagnetic wave that has a higher frequency will also have . (4 points) longer wavelength and equal speed
longer wavelength and higher speed
shorter wavelength and equal speed
shorter wavelength and higher speed

the volume increases

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

50.23 i believe is correct but don't quote me on that.