What is wrong with the notation 1s22s22p63s23p63d104s24p2 for germanium (atomic number 32)?A. The 4s subshell should appear before the 3d subshell. B. The 3p subshell should have more than 6 electrons. C. The 3d subshell can hold only 8 electrons. D. The 4d subshell should receive electrons before the 4p subshell.2. Why should the 4s subshell be filled before the 3d? A. The 4s subshell has greater spherical symmetry than the 3d subshell. B. The 4s subshell is farther from the nucleus than the 3d subshell. C. The 4s subshell is at lower energy than the 3d subshell. D. The 4s subshell holds fewer electrons than the 3d subshell.3. Write the electron configuration for the Na+ ion, which has ten electrons.4. Write the electron configuration for the Br? ion, which has thirty-six electrons.

Comedians like to joke that the reason we haven’t been visited by intelligent life from elsewhere in the universe is that aliens have been monitoring earth’s broadcasts of intellectually embarrassing tv programs, like gilligan’s island, fear factor, the jersey shore, and the jerry springer showand so consider us far too primitive to merit a visit. let’s check the assertion that aliens could have been receiving them. tv programs are broadcast at a frequency of about 100mhz with about 100kw of total power in 30frames per second, which emanatesroughly uniformly in all directions. assume that interstellar space transmits these broadcasts without attenuation. no matter how smart they are, aliens would require at least one photon per frame to interpret our signals. findthe number of photons per unit time per unit area reaching a receiver on a possible planet in the nearest star system, which is about 4 light-years away (a light-year is the distance light travels in a year). if aliens aimed a receiver or detector directly at earth, how big (in diameter) would it have to be to receive a photon per frame

2kg of refrigerant 134a undergoes a polytropic process in a piston-cylinder assembly from an initial state of saturated vapor at 2 bar to a final state of 12 bar, 80 degree c. a)determine the work for the process in kj. b)sketch the process on a p-v diagram.

Aforce of 100 newtons is used to move an object a distance of 15 meters with a power of 50 watts. find the work dine and the time it takes to do the work