Alkali metals are monovalent elements because they tend to lose the valency electron during the chemical reaction. the elements of group (1A) are known as alkali metals because they react with the water forming...
Nonmetal oxides are known as acidic oxides because they dissolve in water forming acidic solutions, we can use water to differentiate between calcium and zinc because calcium can react with cold water, while zinc...
There is a graduation of the properties of the elements in the modern periodic table and there is a relation between these properties and the electronic configuration of elements, The graduation of some properties...
Elements of the group (1A) are known as alkali metals because they react with water forming alkaline solutions. Potassium is more active than sodium because the atomic size of potassium is larger than that...
