Mystery of Matter Part 2: Unruly Elements

Last updated 3 months ago

10 questions

1

Watch the video using the link below.  You may not have enough time to finish the video and that is ok.  Just get as far as you can.
https://drive.google.com/file/d/1tZBcbFtRvCeR1v-kakj35hbHnMRzIzh8/view

The questions are in chronological order.

Why did the “flame test” become less and less useful as time went on?

Not all of the elements would burn and so it became a useless test

It become more expensive to purchase the elements

The elements started to have a flame color that was so similar, you couldn’t tell them apart

The elements became more and more rare and people didn't want to burn them for nothing

What element was discovered by pointing a spectroscope toward the sun?

Helium

Hydrogen

Cesium

Barium

In the mid 1800’s, one of the theories regarding matter stated that each element…

Had the same atomic mass

Had its own type of atom

Could never lose electrons

Had the same atomic number

The scientists of this time used various models to organize the elements, but they all recognized that their elemental properties…

Were completely unique

Had repeating similar properties

Would shift based on its mass

Could change at random

What did Mendeleev work on that “forced” him to come up with the basic structure we know today as the Periodic Table of Elements?

A Puzzle

A card game

A Chart

A textbook

How did Mendeleev begin sorting the elements?

Families going up and down, and increasing mass from left to right

Increasing mass going down and families going across

What was Mendeleev able to do once he started laying out the table?

Discover electrons

Discover protons

Predict missing elements

Discover the contents of the nucleus

A scrap piece of paper was found from the morning of the trip he was supposed to make, showing how he would list the elements, scribble them out, move them around and trying various arrangements. What should this reinforce to us as people who desire to learn more about the world?

Even the most brilliant people have to try and try and try in order to come to the big breakthroughs that they do, and it should encourage us not to give up in our pursuit of truth.

Answers are always easy to find

Scientists are always brilliant and so it is always easy for them

What was Mendeleev able to do when Gallium was discovered by another scientist?

Make a new row for it

Make a new column for it

Ask the scientist to double check his work, and Mendelev correctly predicted there was an arithmetic error

Predict the particles it would contain

What were the new group of elements called that would not interact with any other elements; that ended up being an entirely new column of elements?

Neutron gasses

Night Gasses

Noble gasses

Native gasses

Why did the “flame test” become less and less useful as time went on?

Not all of the elements would burn and so it became a useless test

It become more expensive to purchase the elements

The elements started to have a flame color that was so similar, you couldn’t tell them apart

The elements became more and more rare and people didn't want to burn them for nothing

What element was discovered by pointing a spectroscope toward the sun?

Helium

Hydrogen

Cesium

Barium

In the mid 1800’s, one of the theories regarding matter stated that each element…

Had the same atomic mass

Had its own type of atom

Could never lose electrons

Had the same atomic number

The scientists of this time used various models to organize the elements, but they all recognized that their elemental properties…

Were completely unique

Had repeating similar properties

Would shift based on its mass

Could change at random

What did Mendeleev work on that “forced” him to come up with the basic structure we know today as the Periodic Table of Elements?

A Puzzle

A card game

A Chart

A textbook

How did Mendeleev begin sorting the elements?

Families going up and down, and increasing mass from left to right

Increasing mass going down and families going across

What was Mendeleev able to do once he started laying out the table?

Discover electrons

Discover protons

Predict missing elements

Discover the contents of the nucleus

A scrap piece of paper was found from the morning of the trip he was supposed to make, showing how he would list the elements, scribble them out, move them around and trying various arrangements.  What should this reinforce to us as people who desire to learn more about the world?

Even the most brilliant people have to try and try and try in order to come to the big breakthroughs that they do, and it should encourage us not to give up in our pursuit of truth.

Answers are always easy to find

Scientists are always brilliant and so it is always easy for them

What was Mendeleev able to do when Gallium was discovered by another scientist?

Make a new row for it

Make a new column for it

Ask the scientist to double check his work, and Mendelev correctly predicted there was an arithmetic error

Predict the particles it would contain

What were the new group of elements called that would not interact with any other elements; that ended up being an entirely new column of elements?

Neutron gasses

Night Gasses

Noble gasses

Native gasses