What type of forces affects the speed and direction of motion of object

The continuous release of nuclear energy caused when one fission reaction triggered more nuclear reactions is a

The characteristic of two different types of reactions are shown below. reaction a: electrons are gained by the atoms of an element. reaction b: protons are lost by the atom of and element. which statement is true about the atoms of the elements that participate in the two reactions? a: their identity changes in both reaction a and b. b: their identity changes in reaction a but not b. c: their identity changes in reaction b but not a. d: their identity remains the same.

How can the number of core electrons be determined from the periodic table