The information on this page is ✔ fact-checked. The boron group, also known as the triels, comprises six elements in the periodic table: boron (B), aluminum (Al), gallium (Ga), indium (In), thallium (Tl), and nihonium (Nh). These elements are characterized by having three valence electrons. Boron, being the lightest element in the boron group, is … Read more
The information on this page is ✔ fact-checked. Period 7 elements refer to the chemical elements in the seventh row or period of the periodic table, ranging from atomic number 87 (francium) to atomic number 118 (oganesson). This period contains a total of 32 elements that are classified into four main categories: alkali metals, alkaline … Read more
The information on this page is ✔ fact-checked. Period 6 elements refer to the chemical elements found in the sixth row or period of the periodic table, starting from the element cesium (Cs) and ending with the element radon (Rn). This group of elements exhibits a wide range of chemical and physical properties, which makes … Read more
The information on this page is ✔ fact-checked. Period 5 elements are a group of chemical elements found in the fifth row or period of the periodic table. This period consists of 18 elements, starting from rubidium (Rb) with atomic number 37 and ending with xenon (Xe) with atomic number 54. The period 5 elements … Read more
The information on this page is ✔ fact-checked. Period 4 elements refer to the chemical elements found in the fourth row or period of the periodic table. This period includes elements ranging from potassium (K) to krypton (Kr), with atomic numbers 19 to 36. Period 4 elements are interesting because they show a range of … Read more
The information on this page is ✔ fact-checked. Period 3 elements are the set of chemical elements found in the third row or period of the periodic table. This row contains eight elements: sodium (Na), magnesium (Mg), aluminum (Al), silicon (Si), phosphorus (P), sulfur (S), chlorine (Cl), and argon (Ar). These elements possess a wide … Read more
The information on this page is ✔ fact-checked. Period 2 elements are the chemical elements found in the second row or period of the periodic table. This row contains eight elements, starting from lithium (Li) and ending with neon (Ne). These elements have two electron shells, with the first shell containing two electrons and the … Read more
The information on this page is ✔ fact-checked. Period 1 elements refer to the chemical elements located in the first row or period of the periodic table. This group of elements includes hydrogen (H) and helium (He), the two most abundant elements in the universe. Despite their small size and low atomic numbers, period 1 … Read more
The information on this page is ✔ fact-checked. Noble gases, also known as inert gases, are a group of elements in the periodic table that are known for their low reactivity. The six noble gases are helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), and radon (Rn). These elements are called noble gases … Read more
The information on this page is ✔ fact-checked. Reactive nonmetals are a group of chemical elements that are located in the upper right-hand corner of the periodic table. This group includes 11 elements, namely hydrogen (H), carbon (C), nitrogen (N), oxygen (O), fluorine (F), phosphorus (P), sulfur (S), chlorine (Cl), selenium (Se), bromine (Br), and … Read more