The process of spontaneous radioactive decay of atoms of unstable elements is best described by which statement?
O Amore massive particle absorbs energy and turns into a less massive particle.
re
O Aless massive particle absorbs energy and turns into a more massive particle.
O Aless massive particle forms one or more massive particles and emits energy.
A more massive forms one or more less massive particles and emits energy particle

What is the number of moles of chemical units represented by 9.03x10^24? and how do i show work? (dumb it down )

The famous scientist galileo galilei did several experiments with sloping planes, which he rolled metal balls down so that he could study motion. by changing the slope, he could study how the speed at which the ball rolled was affected. what was the independent variable in galileo's experiment? a. the speed of the ball b. the slope of the plane c. whether the ball moved d. what the ball was made of

Which statement correctly describes the phosphate ion, ? it is composed of one phosphorus atom and four oxygen atoms covalently bonded together, and there is a –3 charge distributed over the entire ion. it is composed of one phosphorus atom and four oxygen atoms covalently bonded together, and there is a –3 charge on the phosphorus atom. it is composed of one phosphorus atom and four oxygen atoms ionically bonded together, and there is a –3 charge distributed over the entire ion. it is composed of one phosphorus atom and four oxygen atoms ionically bonded together, and there is a –3 charge on the phosphorus atom.