If an electron moves up from the first orbit to the higher energy levels, energy will be absorbed by the electron itself and no emission line produced.
But if it moves from the orbits 6,5,4 and 3 to orbit 2, energy will be released by the electron and different emission lines wll be produced.
You need to look at the electronegativity and decide wheter the difference of both of the numbers are significant enough to form a polar bond
Answer:
Zinc is an <em>element</em>.
Explanation:
Compounds are composed of two or more elements
3.21e+11 is your answer for 321 millimeters in picometers. Hope this helps!
