The information on this page is ✔ fact-checked. Nonmetals are a group of elements that have very different properties from metals. They are found in the upper right-hand corner of the periodic table and include 17 elements, with hydrogen, carbon, nitrogen, oxygen, fluorine, and chlorine being some of the most well-known. In addition to these … Read more
The information on this page is ✔ fact-checked. Metalloids are elements that exhibit both metallic and non-metallic properties. There are six recognized metalloids in the periodic table: boron (B), silicon (Si), germanium (Ge), arsenic (As), antimony (Sb), and tellurium (Te). These elements have properties that are intermediate between those of metals and nonmetals. Metals are … Read more
The information on this page is ✔ fact-checked. Post-transition metals, also known as poor metals, are a group of chemical elements located in the periodic table between the transition metals and the metalloids. They are called poor metals because they have some of the characteristics of both metals and nonmetals, and often exhibit properties that … Read more
The information on this page is ✔ fact-checked. Transition metals, also known as transition elements, are a group of metallic elements that occupy the central block, or “d-block“, of the periodic table. They are characterized by their unique electronic configurations, which involve partially filled d orbitals. The transition metals include some of the most common … Read more
The information on this page is ✔ fact-checked. Actinides are a group of metallic elements located in the bottom row of the periodic table, below the lanthanides. This group consists of 15 elements, including actinium, thorium, uranium, and plutonium, among others. The actinides are often categorized into two groups: the “early” actinides (actinium through plutonium) … Read more
The information on this page is ✔ fact-checked. Lanthanides (also referred to as lanthanoids) are a series of 15 metallic elements that occupy the atomic numbers 57 to 71 in the periodic table. They are also referred to as the “rare-earth elements” due to their scarcity in the Earth’s crust. The lanthanides were first discovered … Read more
The information on this page is ✔ fact-checked. Alkaline earth metals are a group of chemical elements comprising beryllium (Be), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba), and radium (Ra). These metals are found in the second column of the periodic table, also known as group 2 elements. The term “alkaline earth” was first … Read more
The information on this page is ✔ fact-checked. Alkali metals (also known as the lithium family) are a group of six elements on the periodic table that include lithium (Li), sodium (Na), potassium (K), rubidium (Rb), cesium (Cs), and francium (Fr). These elements are highly reactive and are located in the first column of the … Read more
The information on this page is ✔ fact-checked. A metal is a material that is characterized by its luster, malleability, ductility, and conductivity. These properties are the result of the metallic bond, which is the electrostatic attraction between positively charged metal ions and a sea of delocalized electrons. Metals are widely used in construction, manufacturing, … Read more
The information on this page is ✔ fact-checked. A period in the periodic table is a horizontal row of elements that share the same number of electron shells. In total, there are seven periods in the periodic table, each containing a different number of elements. The number of elements in a period corresponds to the … Read more
