55. Which is a characteristic of all ions? (1 point) They are made of one type of atom.
They have one overall charge.
They are made of two or more types of atoms.
They have two or more overall charges.

Write a brief passage describing a neutral atom of nitrogen-14 (n-14). describe the number of protons, neutrons, and electrons in the atom, where each type of particle is located, and how the terms atomic number, mass number, and atomic mass are related to the particles. use the periodic table to you. 14 protons and eletrons since its a neutral atom

The earth's surface is (science) a: studied using seismic waves b: constantly changing over time c: only studied indirectly d: the same today as million of years

Which example is a mechanical wave?     a.microwave    b.radio wave    c.water wave    d.ultraviolet light