Potassium-42 emits an alpha particle Which isotope is produced? 

Is the isotope stable or unstable?

iodine-131 emits an alpha particle 

Which isotope is produced? 

Is the isotope stable or unstable?

pl give as fast as you can

Five students had to answer the question how are elements arranged in a periodic tabledamon: i think the elements are arranged by increasing massflo: i think the elements are arranged according to their properties sienna: i think the elements are arranged by when their discovers kyle: i think the elements are arranged according to how common they areglenda: i don't agree with any of themwho is right

Gymnast always perform on padded mats. how does the mats protect the gymnast

Ageologist determines that a sample of a mineral can't be scratched by a steel nail but can be scratched by a masonry drill bit. based on this information, the sample mineral has to be softer than a. orthoclase. b. fluorite. c. apatite. d. corundum.