Please help me with this I will give out extra points with the brain thing if you help me with this science question 5/5 image below. I promise

If the atomic mass of an atom is 34 and the atom contains 13 protons, how many neutrons does the atom contain?

What type of reaction is shown below? check all that apply. 2h2o2 → 2h2o + o2 synthesis decomposition combustion

Which statement correctly describes metallic bonds? a. they form when certain atoms lose electrons and other atoms gain electrons. b. they involve an attraction between anions and cations. they always involvpoth a metal and a nonmetal. d. they can only form between atoms of the same element. e. they form because electrons can move freely between atoms.