Lanthanoids are otherwise known as rare earth elements, and are found in the f-block of the periodic table. They are comprised of the 15 elements from Lanthanum (atomic number 57) to Lutetium (atomic number 71). Commonly referred to as “inner transition metals,” lanthanoids are characterized by their shiny surfaces and low densities. Actinoids are also …
Lanthanoids and Actinoids – ലാന്തനോയിഡുകളും ആക്റ്റിനോയിഡുകളും Read More »
Transition elements are elements in the d-block of the periodic table that have partially filled d-orbitals. They are also known as transition metals. These elements are characterized by their ability to form multiple chemical bonds and coordination complexes. Examples of transition elements include iron, cobalt, nickel, copper, zinc, and chromium.
The noble gases are a group of elements in the periodic table that are known for their lack of reactivity. The six noble gases are helium, neon, argon, krypton, xenon and radon. They all have full outermost electron shells, which makes them very stable and un reactive.
Representative elements are the elements in Groups 1, 2, and 13-18 of the periodic table. These elements are known for their ability to form positive ions with a single, outermost electron, or to form covalent bonds with other atoms. Examples of representative elements include hydrogen, oxygen, sodium, magnesium, aluminium, sulphur, chlorine, and argon.
The electronic configuration of elements in the periodic table is based on the number of electrons in the atom. The configuration is determined by the number of protons in the nucleus and the arrangement of electrons in shells. The elements in the periodic table are arranged in order of increasing atomic number, which is the …
The modern periodic law states that the physical and chemical properties of elements are a periodic function of their atomic numbers. This law is used to arrange elements in the periodic table, which is based on the atomic number of each element. It states that when elements are arranged in order of their atomic numbers, …
Mendeleev’s periodic law only accounted for known elements and did not account for undiscovered elements that had yet to be discovered. Mendeleev’s periodic law was limited in that it did not account for the existence of isotopes, which are atoms of the same element with different atomic masses. Mendeleev’s periodic law was based on the …
Limitations of Mendeleev’s periodic law – മെൻഡലീവിന്റെ പീരിയോഡിക് നിയമത്തിന്റെ പരിമിതികൾ Read More »
Mendeleev’s periodic law provides an organized way to classify elements according to their atomic number and chemical properties. It enabled scientists to predict the existence of elements yet to be discovered and the properties they would possess. It provided a way to identify groups of elements with similar properties and behavior. It enabled scientists to …
Advantages of Mendeleev’s periodic law – മെൻഡലീവിന്റെ പീരിയോഡിക് നിയമത്തിൻറെ പ്രയോജനങ്ങൾ Read More »
Mendeleev’s periodic law states that when elements are arranged in order of increasing atomic number, the physical and chemical properties of the elements are repeated periodically. This means that elements with similar properties tend to be grouped together in the periodic table, and that elements that have similar properties are arranged in vertical columns, called …
Mendeleev’s periodic law – മെൻഡലീയഫിന്റെ പീരിയോഡിക് നിയമം Read More »
The Mendeleev classification is a system of chemical elements developed by Russian scientist Dmitri Mendeleev in 1869. It arranges the elements in order of increasing atomic number and groups them into eight categories based on their similar properties. These categories are labeled as groups and periods. Each group contains elements with similar chemical properties while …
Classification using table – പട്ടിക ഉപയോഗിച്ചുള്ള വർഗ്ഗീകരണം Read More »