Draw two H covalently bound to one O to form a water molecule. (Lewis or Electron Dot) Which atom has the largest nucleus? To which atom are the electrons most attracted? Which atom(s) has a partial negative charge? Which atom(s) has a partial positive charge?

Iodine has 37 known isotopes.  Therefore, the atomic mass has a range of 108-144 amu. Which of the following statements concerning iodine is correct? A) The isotopes of iodine have between 55 and 91 protons. B) An atom of iodine can have between 55 and 91 neutrons. C) The isotopes of iodine will always have the same number of neutrons, but the protons can vary. D) The isotopes of iodine have between 108 and 144 neutrons, but the number of protons will not vary.

What would be the simplest way to tell the difference in non polar covalent bonds, polar covalent bonds, and an ionic bond? Would I be able to tell if the charge is negative or positive? If so- how?

H B H H A H H What do we call the bonds labelled A and B? Covalent bond, hydrogen bond Hydrogen bond, ionic bond lonic bond, covalent bond Hydrogen bond, covalent bond H