Ionic compound is the answer!
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.
I think it would be the second one because some think that there is enough evidence and some do not.
The statements that
apply are;
Say to the patient, "Step aside and I will get you
connected to the internet."
Ask the patient, "How were you feeling when you were
having this difficulty?"
Encourage the patient to recognize signs of mounting tension
and seek assistance.
Invertebrates
in- = not
vertebra = spine