![]() Nitrogen rarely reacts with other chemicals. A property closely related to an atom’s mass number is its atomic mass. If you want to calculate how many neutrons an atom has, you can simply subtract the number of protons, or atomic number, from the mass number. It is vital to know the number of atoms that make up a molecule, as it serves as the base. This number defines the specific isotope. Properties Nitrogen is gas at standard temperature and pressure. Together, the number of protons and the number of neutrons determine an element’s mass number: mass number protons + neutrons. Mass number symbol A is the sum of the number of protons and neutrons. The nucleon number ( mass number) is shown in the left superscript position (e.g., 14 N). Nitrogen has 5 electrons in its outer shell and needs 3 more electrons to get a full outer shell so it can form 3 bonds with other atoms. Nitrogen is in Period 2 of the Periodic Table because it has 2 electron shells. Atomic Structure The most common stable isotope of Nitrogen has 7 neutrons in its nucleus giving it an atomic mass of 14. Nitrogen forms a covalent bond with another Nitrogen atom to produce a simple covalent molecule. Molecular Structure The chemical formula for a Nitrogen molecule is N 2. NItrogen chemical element with 7 atomic number, atomic mass and electronegativity values. Calculating numbers of subatomic particles The symbol for an atom can be written to show its mass number at the top, and its atomic number at the bottom. Total number of protons in the nucleus is called the atomic number of the atom and is given the symbol Z. Nitrogen is a Group 5 non-metal element, on the Periodic Table, with 7 protons in the nucleus.Ībout Nitrogen Nitrogen makes up 78% of the air. Summary Atomic Number Protons, Electrons and Neutrons in Nitrogen Nitrogen is a chemical element with atomic number 7 which means there are 7 protons in its nucleus. ![]() A 2 dimensional representation of the Bohr Model of a Nitrogen-14 isotope with 7 protons and 7 neutrons in the nucleus and 2 electrons in the first shell and 5 in the outer shell. ![]()
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