You might see the oxidation number, something like 2+ or 3-. The number of neutrons varies because there are different isotopes of tin. Usingm of tin electrode: Trail-1:Moles of tin prduced = 2.78x10-3mol Number of electrons flowed through the cell due to 2.78x10-3mol tin = q / e = 63.798 C / 1.602x10-19C = 3.9824x1020 view the full answer The tin has 5 energy level (shell) because it is in the 5th row of the periodic table. Tin atoms have 50 electrons and 50 protons with 4 valence electrons in the outer shell. Example: Oxygen is in the 16th period. The tin atom has a radius of 140.5 pm and a Van der Waals radius of 217 pm.In its elemental form, tin has a silvery-gray metallic appearance. If you look at the periodic table and at the period numbers, that is the number of valence electrons. 1. For example, if you see Na+1, you know that sodium has a net charge of 1. Atomic mass of Tin is 118.71 u. 2. *Note that isotopes have the same number of electrons, protons and atomic number as the original atom. Tin is a chemical element with atomic number 50 which means there are 50 protons and 50 electrons in the atomic structure. Every atom of tin has 50 protons in its nucleus. In the case of Tin the abbreviated electron configuration is [Kr] 4d10 5s2 5p2. Characteristics and Properties Under standard conditions tin is a soft silvery-gray metal. 115 Sn or Tin 115 Atomic number: 50 Protons: 50 Electrons: 50 Neutrons: ? Atomic Number of Tin. Mass number: 115 Now we get the number of neutrons: n = A - p n = 115 - 50 n = 65 So 115Sn has a mass number of 115, 50 protons, 50 electrons and 65 neutrons. If the number is larger than 10, subtract 10 so you get two valence electrons. And there will be 50 electrons around a neutral atom of tin. Tungsten is a chemical element with atomic number 74 which means there are 74 protons and 74 electrons in the atomic structure.The chemical symbol for Tungsten is W. Atomic Mass of Tungsten. Valence electrons are the electrons contained in the outermost shell. Electrons have a specific form of distribution (or configuration) in every atom, even Tin. It is malleable, ductile and highly crystalline. Atomic Number of Tungsten. The number of electrons in each of tin's shells is 2, 8, 18, 18, 4 and its electron configuration is [Kr] 4d 10 5s 2 5p 2. Note that, each element may contain more isotopes, therefore this resulting atomic mass is calculated from naturally-occuring isotopes and their abundance. Atomic mass of Tungsten is 183.84 u.. Although most elements have the same number of electrons and protons in their atoms, an element can lose or gain electrons as part of a chemical reaction. Tin can form two different allotropes under normal pressure. Sources, facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and images. The atomic mass is the mass of an atom. It is very malleable (meaning that it can be pounded into a thin sheet) and can be polished to a shine. Valentina Electrons in Tin (Sn) - Facts, Color, Discovery ... 0 0 … Some are hard to memorise (or predict), so what is the electron configuration of an atom of Sn? Element Tin (Sn), Group 14, Atomic Number 50, p-block, Mass 118.710. Each square on the periodic table contains a letter symbol for an element printed directly under the atomic number of the element. The chemical symbol for Tin is Sn.. Atomic Mass of Tin. This tells you about the relationship between the two.