![]() ![]() The number of protons present in the nucleus determines the chemical characteristics of elements. The atomic number is the sum of protons present in the centre of the atom, i.e., the nucleus, and is represented by the letter Z. The atomic mass of an element is the total sum of protons and neutrons. The nucleus, the centre of the atom, is positively charged and contains protons and neutrons.Įlectrons, the negatively charged component surrounds the nucleus. The notion of atomic number can be comprehended when you are well-versed with what the elements are made from.Ī single sort of atom helps evolve an element.Īn atom is the tiniest and unbreakable unit of matter, which contains electrons, protons, and neutrons. It is significant to know the atomic number and electronic arrangement of an element to find out its valency. The number of electrons in the valence shell establishes the valency of an object. ![]() The number of the negatively charged element (electron) in the outermost shell is known as valence electrons, and the outermost shell is called the valence shell. This aptitude of an atom to attain or displace the negatively charged element (electron) to reach a steady configuration or static gas arrangement is referred to as the Valency of an element. ![]() In order to attain the steadiest arrangement i.e., of a noble gas, the atom of an object makes efforts to acquire or displace electrons. Test Your preparation level with our FREE MOCK TEST SERIES Get Access to our FREE E-BOOKS based on the latest CBSE pattern
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