All isotopes of one element retain the chemical properties of that element.
differ in the number of ions present.
differ in the number of electrons present.
retain the mass number of that element.

What must happen before a body cell can begin mitotic cell division

The best solution for preventing harm to people and pets from severe hurricanes involves determining and warning residents about what

As air becomes more dense, (select all that apply) o. air weighs less o. gas molecules are closer together o. air is colder o. air weighs more o. gas molecules are further apart o. air is hotter