Which of the following elements forms a +3 charge?

Many radioactive atoms that have large masses undergo radioactive decay by releasing a particle that is identical to a helium-4 nucleus. what changes in the original atom are expected as a result of this natural phenomenon? the atomic number and the mass number will decrease. the atomic number and the mass number will increase. the atomic number will increase, and the mass number will decrease. the atomic number will decrease, and the mass number will increase.

The variety of organism living in an area

Which of the following has potential energy but no kinetic energy? longitudinal sound waves an arrow shot from a bow a compressed spring a vibrating atom