Mrs Roberts: Well, elements that have similar properties to each other are put into vertical columns called groups. Now, the table is called the periodic ... Elements in a group have similar ...

So, today we're going to look at the periodic ... in the same group are similar to each other Mendeleev's ideas are still in use today. However, the modern periodic table arranges the elements ...

The electron and proton are attracted to each other. This attraction holds the atom together ... electrons from the skin are transferred to the plastic giving the plastic a negative charge. When the ...