If the nuclear reactions on the sun increased in magnitude in order that the sun emitted black body radiation at a temperature of 6800 k, determine the following: (a) the wavelength of light that would have the maximum spectral intensity; and (b) an estimate of the average temperature of the earth that would correspond to a thermal equilibrium between the earth and sun. part b. a one meter radius hemi-sphere symmetrically covers a small area of size 5 cm2 that emits a black body at 1000 k. estimate the amount of energy received by the hemi-sphere in the angular range 40 < 0s41 from the normal of the surface.

the reaction mixture contains some ammonia, plus a lot of unreacted nitrogen and hydrogen. the mixture is cooled and compressed, causing the ammonia gas to condense into a liquid. the liquefied ammonia is separated and removed. the unreacted nitrogen and hydrogen are then recycled back into the reactor .

i think it is true since you can test the answer and can use observations to complete it.

the seeing the electronic configuration we can say that the element is fluorine.

fluorine is the most electronegative element in the periodic table.

but by only seeing the configuration we cannot say about its reactivity because we don't know if its configuration after excitation or by addition of electrons.

but if not then, it is the lightest halogen and exists as a highly toxic pale yellow diatomic gas at standard conditions. as the most electronegative element, it is extremely reactive: almost all other elements, including some noble gases, form compounds with fluorine.