The periodic table is a tabular arrangement of the chemical elements, organized on the basis of their atomic numbers, electron configurations (electron shell model), and recurring chemical properties.
The Doors were an American rock band. They were one of the most famous bands of all time. Take this quiz and see how well do you really know The Doors.
Putting a project on Kickstarter to raise the crowd-funding turned out to be highly beneficial for a lot of people and business, especially for the top 10 ones that raised the most.
