Solve for 20 pts
hint: you might need a periodic table

a famous chemist was found murdered. the police knew that two people were involved in the murder. they found a note that written by the chemist which read – ’26-3-58/28-27-57-16′.

after reading the note the police immediately caught the murderers. how?

What are scientists who study fossils called? ( a ) astronomers. ( b ) biologists. ( c ) geologists. ( d ) paleontologists.

Consider hydrogen in an excited state n = 5n=5 that emits photons to reach the ground state. there are various possible transitions other than straight to the ground state that can occur; for example, it can drop to the n = 3n=3 state followed by the n = 3n=3 to the ground state transition. which of the possible transitions will result in the emission of a photon in the visible region?

What must be in balance for temperatures to remain constant?