Jyoti Bashyal 
a) Which of the following models does not correspond to the Thomson Model of Atom? plum pudding model watermelon model raisin pudding model nuclear model b) Rutherford in his atomic model could not explain which of the following behaviour? Electrons … Read more
Nitrogen is a nonmetal in Periodic Table Group V. It exists in the atmosphere as a gaseous element composed of diatomic molecules. Nitrogen makes up approximately 78 percent of the atmosphere by volume, making it the most important source of … Read more
The element Nitrogen belongs to Periodic Table Group 15. It is a nonmetallic element that accounts for approximately 78 percent of the Earth’s atmosphere. It exists in the form of diatomic molecules, N2. The gas is inert due to a … Read more
The element Chlorine is the halogen located in group 17 in the periodic table. Chlorine is the chemical element that constitutes about 0.017 percent of the earth’s crust. Chlorine is a toxic, corrosive gas that is greenish-yellow and irritating to … Read more
Group 17 of the periodic table is named Halogens as they all produce sodium salts with similar properties. The chemical properties of halogens [ fluorine (F), chlorine (Cl), bromine (Br), and iodine (I)] are summarized below. Oxidizing Properties of Halogen … Read more
A halide ions is a negatively charged anion formed by a halogen atom. They have a (-1 ) charge. A halide is also a compound composed of a halogen atom bonded to a less electronegative species. Halide Ions include fluoride … Read more
Group 2 elements (alkaline earth metals) all have two electrons in their outermost principal quantum shell. All Group 2 metals can form ionic compounds in which they donate their two outermost electrons (acting as reducing agents) to form a +2 … Read more
Group 17 of the periodic table is named Halogens as they all produce sodium salts with similar properties. In Greek, halo means salt, and genes mean generating, so salt-producing is a collective meaning of the term. Halogens are also known … Read more
The modern periodic table, created by Dmitri Mendeleev, listed elements in ascending atomic mass order. Groups of elements with similar physical and chemical properties constitute the columns. The elements in Group 2 have atoms whose electronic configurations end with two electrons … Read more