How many kilograms are in a 50 pound luggage bag? use 1 pound= 0.45 kg

Will mark brainliest how many electrons can be held in the energy level n = 4?

Chromosome 17 is made of over million base pairs.

Which statement best summarizes the importance of ernest rutherford’s gold foil experiment? it proved that all of john dalton’s postulates were true. it verified j. j. thomson’s work on the atomic structure. it showed that an electron circles a nucleus in a fixed-energy orbit. it showed that a nucleus occupies a small part of the whole atom.