Answer:
The wavelength of the radio wave is 3.003 m.
The energy of the radio wave is
.
Explanation:
Frequency of the radio waves, ν = 99.9 MHz = 
Wavelength and frequency are related to each other by realtion:

= Wavelength of the wave
c = speed of the light
ν = Frequency of the wave

The wavelength of the radio wave is 3.003 m.
The energy of the electromagnetic wave is given by Planck's equation:

h = Planck's constant = 
The energy of the radio wave with 99.9 MHz frequency will be:


The energy of the radio wave is
.
Answer:
layer B is liquid because of the inner members and layer A is solid because of the outer members
Answer:
The vertical columns (group) of the periodic table are arranged such that all it's elements have the same number of valence electrons. All elements within a certain group thus group share similar properties.
Answer:
krypton,radon, and silicon
Answer:
yes that is true.Because they are ions.oppositely chared ions attract each other