an element is distinct from others by the number of protons, change the number of protons you have a different element1. The number of elections can be altered creating ions2 and the number of neutrons can be different which are isotopes. so the atomic weight can change between ions and isotopes of the same element.
1. breaking down of the nucleus called radiation.
2. cations + charge: number of protons greater then elections
anions - charge: number of elections greater then protons
First, find its atomic mass on the periodic table and subtract the number of protons (element number) from it and there you go
The atomic number is the number of protons in an atom of an element, while the atomic mass is the mass of protons and neutrons of a specific isotope of a given element.
Number of neutrons = Atomic mass of an isotope - Atomic number of the element The atomic number of meitnerium is 109. Each isotope of an element has a different number of neutrons. Meitnerium has 109 protons.
the atomic mass is the number of protons and neutrons in an atom of an element and the atomic number is the number of protons of an atom of an element.
Every element has a specific number of protons, which is how an element is identified. That gives its atomic number. The number of neutrons can vary, and therefore is not useful in identifying an element.
First, find its atomic mass on the periodic table and subtract the number of protons (element number) from it and there you go
Atomic number and atomic mass are not alike. Atomic number is the number of protons in the nuclei of the atoms of an element. Each element has a unique atomic number. Atomic mass is the combined masses of the protons, neutrons, and electrons of the atoms of an element. Individual isotopes of an element have specific mass numbers, which are the sum of the protons and neutrons in the nuclei of the atoms of the isotope.
It is about neutrons and protons. The total of neutrons and protons.
The atomic number is the number of protons in an atom of an element, while the atomic mass is the mass of protons and neutrons of a specific isotope of a given element.
No, atomic number equals the number of protons.The number of neutrons is NOT specific to an element, and various atoms of the same element can have different numbers of neutrons - these are called isotopes.
protons + neutrons
Atomic weight of an element is the number of protons plus neutrons in the nucleus, atomic number is the number of protons only.
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 that specific element. Actually, it is only the protons. The number of neutrons and/or electrons can vary, and it is still the same element. The one thing that makes an element that specific element is only the number of protons.
The atomic number of a chemical element is equal to the number of electrons or protons. The number of neutrons = Atomic weight of an isotope (rounded) - atomic number of the element (or the number of protons) R
Sum of protons and neutrons is the Mass number of the element. The number of protons is equal to the number of electrons. Neutrons and protons are sub atomic particles.
Number of protons = Number of electrons = Atomic number Number of neutrons = Atomic number - Number of protons
The atomic number of an element is determined by the number of protons in its nucleus.