The Periodic Table

How many known elements are there on the periodic table?

• 118

• 120

• 86

• 2

Who is credited with creating the first accepted Periodic Table?

• Albert Einstein

• Dmitri Mendeleev

• Isaac Newton

• Marie Curie

How many vertical groups are in the periodic table?

• 7

• 12

• 18

• 6

How many horizontal periods in the periodic table?

• 7

• 8

• 6

• 18

What is the significance of the year 2016 in the context of the periodic table?

• Discovery of the first element

• Last change to the periodic table

• Mendeleev's birth year

• First periodic table proposal.

Why is the periodic table important?

• It helps predict the properties of elements and their compounds

• It lists all known compounds

• It shows the history of chemistry

• It organizes laboratory equipment.

Besides atomic number, groups and periods how else is the periodic table organized?

• blocks

• alphabetical order

• at random

• by number

What is the main way in which elements are organized in the periodic table?

• at random

• by chance

• atomic number

• atomic mass