Answer:
It remains the same
Explanation:
It remains the same. This is because the number of protons doesn't change and the number of protons determines the atomic number.
It is radiation that transfers heat energy through space by electro radiation.
No, they won't, mass coincides with density and objects have different densities a one pound lead ball would be smaller than a one pound copper one.
The correct option is D.
Lumen is used to quantify the amount of total light energy that a source is putting out in all direction, thus, it refers to luminous output of a light source. Initial lumen refers to the luminosity of a light when it was first turned on; the luminosity is highest at this point.