This is an artificially prepared isotope of phosphorus, P-30.
Any atom should have equal number of protons and electrons. If the atom contains 15 protons then it must contain 15 electrons.
Nitrogen-14 has 7 protons, 7 electrons, and 7 neutrons. Nitrogen-15 has 7 protons, 7 electrons and 8 neutrons. So, the only way they differ is in the NUMBER OF NEUTRONS.
Protons are particles with a positive charge, and in order for your atom to be neutral the positive charge must be cancelled out by adding negative charges of the same value. Electrons are negatively charged. So adding 15 electrons to 15 protons would result in a neutral atom. Also since your atom contains 15 protons it must be Phosphorus, element number 15.
The atomic mass of an element is the sum of the number of protons and neutrons in the nucleus of an atom. In this case, the element has 7 protons and 8 neutrons, so the atomic mass would be 7 + 8 = 15 atomic mass units.
The phosphorus atom has 15 protons and electrons and 16 neutrons.
The element with 7 electrons, 7 protons, and 8 neutrons is nitrogen-15 (15N).
The isotope with 15 protons, 16 neutrons, and 15 electrons is oxygen-31.
Nitrogen 15 contains: 7 protons 8 neutrons 7 electrons "15" is added to the name because it is an isotope and contains inequal amounts of protons and neutrons (in this case, an extra neutron).
Nitrogen 15 contains: 7 protons 8 neutrons 7 electrons "15" is added to the name because it is an isotope and contains inequal amounts of protons and neutrons (in this case, an extra neutron).
There are a variety of isotopes that have 30 neutrons. It isn't the number of neutrons that determines an element, but the number of protons. Electrons generally balance the number of protons.
The element is sulphur. It has 5 valence electrons and 16 neutrons.
Elements are determined by their number of protons. Nitrogen has 7 protons but usually 7 neutrons as well. What you have here is a nitrogen isotope, an element with more or less neutrons than there are protons. Specifically, this is Nitrogen-15.
There are 15 protons and 16 neutrons in the phosphorus atom. The atomic number, which is at the top of the square, represent the number of protons. In a neutral atom, there are the same amount of protons as well as electrons so there are 15 protons and 12 electrons. You can find the number of neutrons by subtracting the atomic number from the atomic mass and round to the nearest whole number. In this case, the atomic number would be 15 and the atomic mass is 31. 31 minus 15 is 16 neutrons total.
Any atom should have equal number of protons and electrons. If the atom contains 15 protons then it must contain 15 electrons.
Nitrogen-14 has 7 protons, 7 electrons, and 7 neutrons. Nitrogen-15 has 7 protons, 7 electrons and 8 neutrons. So, the only way they differ is in the NUMBER OF NEUTRONS.
Protons are particles with a positive charge, and in order for your atom to be neutral the positive charge must be cancelled out by adding negative charges of the same value. Electrons are negatively charged. So adding 15 electrons to 15 protons would result in a neutral atom. Also since your atom contains 15 protons it must be Phosphorus, element number 15.
The mass number is equal to the sum of protons and neutrons in an atom. Since the element has 14 electrons and 15 neutrons, it must have 15 protons (atomic number is equal to number of protons). So, the mass number would be 15 + 15 = 30.