An isotope of potassium with 22 neutrons has an atomic number of 19 and atomic mass of 41. The symbol is K with a subscript 19 and superscript 41.
The isotope symbol of plutonium with 146 neutrons is plutonium-246, represented as ^246Pu.
The symbol for a sodium isotope with 12 neutrons would be "Na-23". This notation indicates the element symbol "Na" for sodium and the total number of protons and neutrons in the nucleus (12 neutrons + 11 protons = atomic mass number 23).
You are looking for the symbol of cesium (Cs) and indication of its mass number. The mass number is the sum of the protons and neutrons. So if every atom of cesium has 55 protons, then the mass number of this isotope is 137. The mass number is indicated in superscript before the symbol: 137Cs
5 Protons, 6 Neutrons. For future reference, the protons is the atomic number (right above the element symbol) To get the neutrons you subtract the atomic mass (underneath the symbol) by the number of protons. You have to round this number.
The atomic number of nitrogen is 7. When it is a radioactive isotope you add the number of neutrons to the atomic number (equaling 15). You then write 15 over 7 next to a capital 'N' representing Nitrogen.
The correct nuclear symbol for an isotope with 80 protons and 124 neutrons is Xe-204, where Xe represents the element xenon.
The chemical symbol for fluorine isotope with 9 neutrons is 18F (18 is a superscript).
The number of neutrons in any element depends on the isotope of the element you are referring to. Potassium has 24 isotopes, ranging from 32K to 55K. The most stable natural isotope is 39K, which would have 20 neutrons.
The isotope symbol of plutonium with 146 neutrons is plutonium-246, represented as ^246Pu.
The isotope symbol for fluorine with 9 neutrons is ^18F, where 18 is the atomic mass number (protons + neutrons) and F is the chemical symbol for fluorine.
The mass number is always the sum of the numbers of protons and neutrons and therefore is 39 in this instance. The atomic number of 19 shows that the atom is of the element potassium, and its symbol is 39K.
The isotope with 15 protons and 17 neutrons is Phosphorus-32, which has a symbol of P-32.
The appropriate symbol for an isotope of potassium-39 corresponding to the isotope notation A Z X is ^39_K19.
The symbol for a sodium isotope with 12 neutrons would be "Na-23". This notation indicates the element symbol "Na" for sodium and the total number of protons and neutrons in the nucleus (12 neutrons + 11 protons = atomic mass number 23).
The symbol is Ba. The number of neutrons equal the number of protons.
The isotopic symbol for the sulfur isotope with 18 neutrons is ^34S. This is because sulfur's atomic number is 16, so adding 18 neutrons gives a mass number of 34.
This an isotope of osmium, osmium-191. The symbol is 19176Os.