text: i have a question on elements? i need help for my homework so can you guys help me thanks.  help me by answering these questions...  a. we both elements have 10 neutrons in our nuclei.what are we?  if you have the answer for this question please put answer "a" along with your answer.  b. i am a gas with two protons in my nucleus.what am i?  type answer "b" along with your answer for this question.  c. i have 3 electrons what am i?  type in answer "c" along with your answer.  d. i am a metal with 78 electrons.  i oftenam made into jewelery.  what am i?  type answer "d" along with the answer.  e. i am a solid non metal with 53 electrons in my nucleus.  what am i?  type answer "e" along with answer.  f. i am a non metal liquid with 45 neutrons in my nuclus what am i?  type answer "f" along with answer  g. my latin name is ferrum. what am i?  type answer "g" along with the answer.  h. i have 157 neutrons and am named after the scientist dmitri mendeleey. what am i?  thank you. =) pull out your periodic table (i would but i don't have one anymore)...  remember to answer practically every question you have listed, just remember these two facts:  the atomic number of an element = the number of protons.      and the number of protons = the number of electrons.  the number of neutrons in an element = the atomic weight - the atomic number (i.e. the number of protons)  and last hint:  the number of neutrons is usually close to the number of protons give or take a few.  so to answer the first question:  find two elements with an atomic number close to 10, and you'll probably find the ones with 10 neutrons.  the second question (i'll give you this one since i don't need a periodic table for this one) :p   2 protons means the element has an atomic number of 2 (i.e. he, or helium)  the third question (i'll give you this one too since i still have this memorized from high school... i think) ;) 3 electrons means 3 protons means an atomic number of 3 (i.e. li, or lithium)  you figure out the rest...  oh except question g... ferrum...ferrous... element fe... "iron"