![]() Thus, the symbol of element sodium is $ Na $. ![]() Sodium is a common name and the chemical name is Natrium. Some chemical elements have chemical names and common names. Lithium-7 accounts for over 92 of the natural abundance of the element. Natural lithium is a mixture of two stable isotopes, lithium-6 and lithium-7. 3 Li Lithium 6.94 4 Be Beryllium 9.0122 5 B Boron 10.81 6 C Carbon 12.011 7 N Nitrogen 14.007 8 O Oxygen 15.999 9 F Fluorine 18.998 10 Ne Neon 20. The molar mass of the element is $ 7 $ as there were three protons and four neutrons in the commonly occurring isotope.Ĭhemical symbol is a short representation of chemical elements. Lithium is the third element in the periodic table, with three protons and the element symbol Li. As the electrons will be easily lost from the element. Under standard conditions, it is the lightest metal and the lightest solid element. It is a soft, silvery-white alkali metal. It is an electropositive element in the periodic table. Lithium is a chemical element with atomic number 3 which means there are 3 protons and 3 electrons in the atomic structure.The chemical symbol for Lithium is Li. Lithium is a chemical element with atomic number $ 3 $ and belongs to the $ $ group. The elements in alkali earth metals are hydrogen, lithium, sodium, potassium, rubidium and caesium. These are metals as they can easily lose electrons. ![]() The elements in the group $ 1 $ are known as alkali earth metals. There are a total of $ 118 $ elements in $ 7 $ periods and $ 18 $ groups. The vertical columns were known as groups and the horizontal rows were known as periods. These elements are arranged in the vertical columns and horizontal rows. Modern periodic table is the representation of chemical elements arranged in the increasing order of atomic numbers. The first group elements are alkaline earth metals the second element in the first group is lithium has the chemical symbol of Li.Ĭhemical elements are the purest form of atoms. Now, each element has a chemical symbol made of one or two letters. These elements are arranged in groups and periods. The periodic table is a way of organising the elements which is used by. Hint: Periodic table consists of different elements arranged in the increasing order of atomic numbers.
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