The valency is the number of electrons that an atom gains, loses, or even shares during a chemical reaction, The valency is the number of electrons that an atom needs to gain or lose...
The properties of the mass The mass is the amount of the matter in an object, the mass of any matter is a fixed value, It does not change by changing the state of...
Lasers in the industry The lasers are used to drill, weld, cut and mark all the sorts of the materials, They can drill the tiny holes in the turbine blades more quickly and less...
The skeletal system provides the support and structure to the body, It protects the vital organs, it works with the muscles to help in the movement, Your bones can be broken or weakened if...