Origins of the Periodic Table

How were the elements that make up our universe formed and released?

• Through the Big Bang.

• By the fusion of hydrogen and helium in stars.

• By exploding stars (supernovas).

• From the decay of radioactive materials.

Why were elements like gold, silver, and copper easily discovered by ancient cultures?

• They were abundant in nature.

• They were highly reactive and formed many compounds.

• They were "choosier" elements that did not interact much with others.

• They were essential for ancient technologies and rituals.

Which element was first discovered by Hennig Brand in the late 1600s?

• Gold

• Phosphorus

• Silver

• Copper

How did Antoine Lavoisier define an element?

• A substance composed of earth, water, air, and fire.

• A substance that cannot be broken down by existing chemical means.

• A substance that can be weighed and arranged by atomic mass.

• A substance that reacts with other elements to form compounds.

What did Dobereiner discover??

• Found the certain elements don't share similar properties and reactions

• Found that certain elements shared similar properties and reactions.

• Found that elements are just a creation of our imagination

• Found that elements are composed of our founding fathers

Who is credited for solving the 'Periodic Table Puzzle'?

• John Dalton

• Dmitri Mendeleev

• Albert Einstein

• Marie Curie