Find the volume of 0.250 M sulfuric acid necessary to react completely with 66.0 g sodium hydroxide.

Cobalt-60 is an artificial radioisotope that is produced in a nuclear reactor and is used as a gamma-ray source in the treatment of certain types of cancer. if the wavelength of the gamma radiation from a cobalt-60 source is 1.00 × 10-3 nm, calculate the energy of a photon of this radiation.

Acurium-245 nucleus is hit with a neutron and changes as shown by the equation. complete the equation by filling in the missing parts. 52

Structure of the atoms: discovery of the nucleus in 1909i need answering all of these questions