What does the element symbol on the periodic table indicate? What is the name of the element that has an atomic number of 8? What element has the atomic number 7? What element is atomic number 54? What element has the atomic number 1?
Given: The number of neutron: {eq}~~N=159 {/eq} Number of electrons {eq}~~107 {/eq} The ion has a charge +1, Thus, the number of protons is number...Become a member and unlock all Study Answers Start today. Try it now Create an acc...
Every element has a chemical symbol, e.g. the symbol for the element sodium is Na. Each element also has an Atomic Number and a Mass Number. Together, these describe the atoms of that particular element. It is possible to describe all known elements in a single table - which is called...
结果1 题目 4 Lithium has two naturally-occurring isotopes, Li and Li.(a)What do you understand by the term isotope?atoms with same numbe of protons but differen numbe of neutrons•■■■...……...[1](b)Draw a labelled diagram to show the atomic structure of an atom of Li....
For example, carbon-12, carbon-13 and carbon-14 are three isotopes of the element carbon with mass numbers 12, 13 and 14 respectively. The atomic number of carbon is 6, which means that every carbon atom has 6 protons, so that the neutron numbers of these isotopes are 6, 7 and 8...
Scientists can determine what elements make up a star by looking at the emissions spectra of the light they produce. This is an emissions spectrum for one element. Each element has its own unique emissions spectrum.View Video Only Save Timeline Video Quiz Course 39K views Types of Stars...
Element-Manganese (Mn) Elements - Explanation, History, Examples and FAQs Elements and Compounds Elements of the First Transition Series Elevation Boiling Point Elimination Reaction Ellingham Diagram Elution Chromatography Emission Spectrum Atomic Spectra – Explanation, Molecular Spectra and FAQs Emulsification...
has at least elements. is non-empty and has at least elements, where is the smallest element of . is non-empty and has at least elements, where is the element of . halts when given as input, where is a given Turing machine that halts whenever given an infinite set as input. (...
This uncertainty exists because the physics inside neutron stars remains difficult to investigate. The heaviest known neutron star has a mass equivalent to around 2.5 times the mass of the sun, while the lightest known black hole has a mass of around 5 times that of the sun. Thus there is...
element - substance that cannot be broken down by chemical reactions ion - electrically charged atom (i.e., excess positive or negative charge) molecule - smallest piece of a compound that keeps its chemical properties (made of two or more atoms) neutron - particle in the nucleus of an atom...