What is phosphorus (element 15), its white and red allotropic forms, is it a metal nonmetal or metalloid, how many electrons, protons, neutrons does it have
英语懂的 来拿分 11.How many neutrons and pro tons are in an atom of phosphorus11.How many neutrons and pro tons are in an atom of phosphorus-31,atomic number 15,and determine how many electrons should be in the first,second,third,and fourth energy levels? 英语作业帮用户2017-10-10 举报...
How many electrons are there in the third shell of sodium, Na (atomic number 11)? (a) None. (b) One. (c) Two. (d) Three.Write the symbol for the nuclide with 47 protons and 61 neutrons and identify the element.Consider the ion Boron^{4+} (Z = 5, o...
the number of protons in the nucleus of the atom. b. the number of neutrons in the nucleus of the atom. c. the number of electrons in the outer or Which of the following are formed elements: white blood cells, red blood...