Elements and the periodic table

How many naturally occurring elements are there?

Which element is considered to be in a category of its own?

The elements in the periodic table can combine to form

How many elements are known in total?

There are three main categories in the periodic table:

What do we call the rows of extra elements at the bottom of the periodic table?

Vertical lines on the periodic table are called

How are the elements on the periodic table arranged?

Group 1 (apart from hydrogen) are called the:

How many of the elements are metals?

The metalloids have:

The periodic table lists all known

Horizontal lines on the periodic table are called

Where are the noble gases located on the periodic table?

The periodic table was originally put together by a scientist called

The periodic table shows for each element: