In diagrams of atoms, protons are shown by a plus sign (+). This represents the proton’s charge of +1..

Asample of radium-226 will decay 1/4 of its original amount after 3200years. what is the half-life of radium-226?

Which of the following is not a true statement about dwarf planets? a the kuiper belt contains comets, asteroids, and dwarf planets. b ceres is a dwarf planet located in the kuiper belt. c the largest known dwarf planet in the solar system is named eris.

Describe the interaction that occurs between two objects with the same electrical charge.