The Periodic Table is a well-organized chart that contains all 118 known elements in the universe. These elements are the ...

Scientists use the periodic table to quickly refer to information about an element, like atomic mass and chemical symbol. The periodic table’s arrangement also allows scientists to discern trends in ...

It arranges all natural and synthetic elements by their atomic number , ranging from ... while also giving each individual ...

So, the atomic number also equals the number of electrons orbiting the nucleus. But remember, there are no electrons inside the nucleus. This is the chemical symbol for chlorine, written with its ...