How many protons neutrons and electrons does sulfur-34 have

Iknow the answer is a but i don't know why

What are transitions between a liquid and gas called? identify which way they are transitioning

What happens when an atom of sulfur combines with two atoms of chlorine to produce sci2? a. each chlorine atom shares a pair of electrons with the sulfur atom. b. an electron is transferred from each chlorine atom to the sulfur atom. c. an electron is transferred from the sulfur atom to each chlorine atom. d. each chlorine atom shares all its valence electrons with the sulfur atom.