Si
A = mass number z = atomic number so this one is a Ni isotope with a mass of 64
The chemical symbol of actinium is Ac.The symbol of an isotope:- as superscript to the left of Ac is the atomic mass of the isotope- as subscript to the left of Ac is the atomic number 89
The atomic number 35 corresponds to bromine, and the symbol would be 81Br.
This an isotope of osmium, osmium-191. The symbol is 19176Os.
28/14 Si Its the number they give you which is the atomic mass of the isotope over the atomic number and the symbol of the element.
The mass number is the sum of neutrons and protons in the atomic nucleus and is different for each isotope of any element. For example the isotope oxygen-16 has the mass number 16. The atomic weight of oxygen (not atomic mass) is [15,99903; 15,99977] after the IUPAC Tables - 2009. The atomic number of oxygen is 8. The chemical symbol is O.
The mass number of an isotope is the sum of protons and neutrons in its nucleus. In this case, the symbol 37 refers to the total number of protons and neutrons, which means the mass number of the isotope 37-17Cl is 37.
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
Chlorine is a non metal element. Mass number of it is 35.
The chemical symbol is Ne. An isotope is writted as: 2010Ne (20 is the atomic mass of the isotope, 10 is the atomic number of Ne).
The symbol for the isotope would be B and the atomic number would be 5, as the mass number is the sum of the protons and neutrons in the nucleus, so in this case: 5 protons + 10 neutrons = mass number 15.
Mass number is the number of protons and neutrons in the atomic nucleus of an isotope. In order to answer this question, you need to know the number of neutrons.