Periodicity of atomic and ionic radii

Elements have standard atomic numbers, but different molecular masses are isotopes. An isotope of an element possesses almost similar chemical properties as other elements or other isotopes of that particular element. Isotopes have the same no. of protons in their outer shell. They differ by the number of neutrons present in their nuclei. Understanding the […]

Isomers are chemical compounds which has the identical chemical formulas but different in the characteristics and atomic arrangement in the molecule, as a result, the substances that displays isomerism are known as isomers. “Isomer” comes from the Greek words “isos” and “meros,” which both imply “equal pieces.” In the year 1830, the Swedish chemist Jacob

Actinides are a set of 15 elements found in the periodic table that begins with actinium and ends with lawrencium. The actinides are placed in the periodic table according to increasing atomic numbers from 89 and 103.  The actinides series are highly infused with radioactivity. This is why they release a vast amount of energy

Most such compounds are made when the elements react with any transition metals. Because transition metals have vacant spaces inside them, usually occupied and filled by small atoms, making them compounds strong and rigid. What are Interstitial Compounds? Interstitial compounds are those compounds or alloys formed when the atom of a smaller radius gets trapped

Introduction The Discovery of many elements in the 19th century led to the development of a classification system for elements to ease their study individually. Finally, in 1913, the modern periodic table was devised by Henry Moseley an English physicist, which states that, ” physical and chemical properties of the elements are the periodic function

Before discussing the spectrum of hydrogen atoms, let us know its definition. So, you know that the electrons of an atom absorb energy to attain their excited state. They jump from lower energy levels to higher energy levels. When they return to their actual state, they emit radiation. This process happens in the case of

Several elements can be found on Earth. 98 elements have been identified from the Earth’s crust. They are listed on the periodic table and grouped according to their properties.  In this article, we will discuss the concept of elements and compounds, their types and other related topics.  What are Elements? First, we need to know

Alkali metals are the first group of elements, which include lithium, sodium, potassium, rubidium, caesium, and francium. They belong to s-block elements of the periodic table. (s-block elements imply that the last electron is located in the s-orbital.) The periodic table’s left side contains alkali metals, which are s-block elements. Alkali metals are the most

The actinide series is the elemental series in the last row of the periodic table with atomic numbers from 89 to 103. These elements are radioactive and have a wide range of oxidation numbers. Uranium is the most common and well-known element. It is used as nuclear fuel when it undergoes a nuclear reaction and

Introduction If you look at the composition of the earth, you’ll notice that there are three major components that make up the earth’s atmosphere: nitrogen, oxygen, and even a trace of argon. To be more specific, nitrogen accounts for 78% of the atmosphere, while oxygen accounts for 21%. Both oxygen, O2, and nitrogen, N2, share