An element has a charge of -3, has 8 protons, 11 neutrons, and electrons / whas the number of electrons

Measurements that have similar values are: a. usually accurate b. sometimes accurate c. always accurate d. never accurate

Who discovered a pattern to the elements in 1869?

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.