LOL. Number of neutrons = 31-15 = 16 15 protons (all P atoms must have 15 p) and 15 electrons (the atom is neutral after all) To make up the mass to 30 we need 15 p and 15 neutrons. Phosphorus has 15 protons and electrons. 1 0. How many protons, neutrons and electrons are there in a neutral atom pf phosphorus-30? Atomic Mass = Proton Number + Neutron Number. The number of protons is the same as the number of electrons, since the charge has to balance and a proton is a +1 charge while an electron is a -1 charge. Number of protons = 15. Chris S. Lv 6. So we have 15p,15e and 15n . Answer Save. Number of electrons = 15. It also means that there are 16 neutrons in an atom of P-31. Potassium has the symbol K. Phosphorous is P. Also, she doesn't seem to know the difference between electrons and neutrons. Phosphorus. Relevance. Atomic number = 15 = number of electron = number of protons. So, in an atom of phosphorus there are 15 protons, 16 neutrons and 15 electrons. ===== Follow up ===== Emmie appears to be out to lunch. Dieser wikiHow-Artikel wird dir zeigen, wie man die Anzahl von Protonen, Neutronen und Elektronen in einem Atom bestimmt. Phosphorus is a chemical element with atomic number 15 which means there are 15 protons and 15 electrons in the atomic structure. Lv 6. The mass number (A) of P-31 is the sum of the protons and neutrons. Phosphorus-33 means it has a mass number of 33. John. Die Anzahl an Protonen und Neutronen sowie Elektronen bestimmen. Please do note that is is based on the data given in your question. Proton number = 15. Favorite Answer. Mass number = 31 = number of protons + number of neutrons. Since Phosphorus has an atomic number of 15, it has 15 Protons. So there are 15 protons and 15 electrons.In P-32 isotope, there are 17 (32 - 15 = 17) neutrons 1 decade ago. The number of neutrons is equal to the atomic weight - the number of protons, since both protons and neutrons weigh about 1amu, and electrons weigh almost nothing. 18 Neutrons. Atomic Mass = 31. Neutron number = Atomic mass - Proton number = 31 - 15 = 16 neutrons. 1 decade ago. The chemical symbol for Phosphorus is P . Proton number = Electron number = 15. There are also 15 electrons in phosphorus. The atomic number of phosphorus is 15. As an element, phosphorus exists in two major forms—white phosphorus and red phosphorus—but because it is highly reactive, phosphorus is never found as a free element on Earth. 2 Answers. ... there are 15 protons and neutrons in phosphorus. 31 = 15 + number of neutrons.

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