What are the key differences between atoms and isotopes? Please include structural (mass number, atomic number) differences. Also the key differences in the symbol from the periodic table, to a symbol of an isotope

What best describes the dropping height of a ball that bounces back up to a height of 45 cm

The lineage of pea plants produced round seeds for four generations. the plants that fertilized these pea plants also produced round seeds. however, in the fifth generation, the plant produced to two plants with wrinkled seeds. can that be possible?

Which of the following is the sl unit used to measure temperature a. kilogram b. liter c. meter d. kelvin