If wavelength of K alpha X rays from copper is 1.337×10-10 m energy difference between 2 levels from which they transition is?

A.9.03kev
B.9.90keV
C.90.3keV
D.8.03keV

show the wavelengths of a wave. show the crests of a wave.

it would be kevlar ^^

answer;

d. are made mostly of liquid

explanation;

-the general   composition and structure planets includes; they have a thick gas and liquid layer covering a small,solid core. mostly the gases are hydrogen and helium atmosphere and layers of liquid hydrogen. for instance neptune and uranus are examples of the outer planets, they have a core covered by ice and ammonia.

-neptune's atmosphere is hydrogen and helium with a bit of methane so there is no oxygen to breath and the interior is made up of frozen water and ammonia with a rock and iron core. thus, there is no liquid water or solid surface to survive.

answer///terminator or twilight zone;