Atoms may have different numbers of neutrons. Atoms are the smallest fraction of an element that can exist, and still show the properties of the element. They consists of electrons (negatively charged), protons (positively charged), and neutrons (no charge). The number of electrons is equivalent to the number of protons normally however an atom may loose or pick up electrons and have a positive charge or negative charge. The number of neutrons in the nucleus may vary within a given element to give varieties of atoms we call isotopes.
A - Salinity because salinity is how much salt is in water and adding more would increase the salinity.
Which of these pieces of legislation was an important step in limiting slavery?
Two similar chromosomes that you inherit from your parents are called homologous chromosomes.
