Fluorine.
Number in periodic system = Number of protons
Ion
Number of protons + Number of neutrons = Mass number(number of nucleons)
An atom is the smallest particle of an element that has the properties of that element. The atom consists of a certain amount of electrons, protons and usually neutrons. The amount of each of these sub-atomic particles is what makes an element. No Sub-Atomic Particles have any characterisitics of an element. It is the collective arrangement of electrons and protons (and usually neutrons) which gives an element its characteristics. An atom is the smallest particle that has elemental characteristics.
That has an atomic mass of (45 + 56), or 101.
An atom or element that have different masses are known as isotopes.
Ion
platinum
Number of protons + Number of neutrons = Mass number(number of nucleons)
Calcium: The identity of an element is determined by how many protons each atom of the element has, and calcium is the name of the element with 20 protons per atom.
A single atom that has varying numbers of neutrons is undergoing a nuclear reaction. However, the questioner probably meant, "What is the name for different atoms of the same element that have differing numbers of neutrons?", and the answer to that question is "isotopes"
An atom is the smallest particle of an element that has the properties of that element. The atom consists of a certain amount of electrons, protons and usually neutrons. The amount of each of these sub-atomic particles is what makes an element. No Sub-Atomic Particles have any characterisitics of an element. It is the collective arrangement of electrons and protons (and usually neutrons) which gives an element its characteristics. An atom is the smallest particle that has elemental characteristics.
The smallest particle of an element that still has all the properties of an element is an atom of that element.
This element has 26 neutrons, so its atomic number would be 26. Given an approximate atomic mass of 48 amu, this corresponds to the element iron (Fe).
That has an atomic mass of (45 + 56), or 101.
This is an easy problem to solve if you have a Periodic Table of Elements.# protons + # neutrons = atomic number3 + 4 = 7The element with the atomic number 7 is Nitrogen.
in order to obtain the mass number of an atom you must get the number of neutrons + the number of protons which = the mass number !!!hope this helped!!! :)
An atom or element that have different masses are known as isotopes.