Periodic Table Basics CHECK

Who developed the first periodic table?

• John Dalton

• JJ Thomson

• Dmitri Mendeleev

• Ernest Rutherford

What type of elements lie ON the stairstep?

• metals

• nonmetals

• metalloids

What elements lie to the LEFT of the stairstep?

• metals

• nonmetals

• metalloids

What elements lie to the RIGHT of the stairstep?

• metals

• nonmetals

• metalloids

Hydrogen is an exception to the stairstep, it is located on the left side but is classified as a:

• metal

• nonmetal

• metalloid

How many groups are there on a periodic table?

• 7

• 18

• 9

• 20

How many periods are there on a periodic table?

• 7

• 18

• 9

• 20

The periodic table has how many elements?

Choose all of the areas that are considered a period.

Which element is in Group 6 Period 4

Tags

NGSS.MS-PS1-1