Periodic Table
What does the periodic table contain?
Elements!
The number of protons!
We watch the Air Ship, The Hindenburg, explode! What element caused the explosion?
Hydrogen!
What range in numbers does the pH scale have?
0-14
What are the columns of the periodic table called?
Groups!
When we rubbed balloons on our heads, what were we transferring to the balloon?
Electrons!
We watched a video of a blimp fly peacefully in the sky. Which element was responsible for the smooth sailing?
Helium!
Acidic!
We looked at elements in Group 1 of the periodic table. When they these elements combined with water, what happened?
A big reaction! (some may say fire)!
Negative!
Water has a very high surface tension. We tested this by floating "boats" on water. What substance did we place in the water to break the surface tension to make the boat move?
Soap!
If a substance has a pH of 12 is it acidic or basic (alkaline)?
Basic (alkaline)!
The same number of electrons in their outer ring. (valence electrons)
(the same/opposite)
Opposite!
What two properties of water allowed us to put so many water droplets on a half dollar?
Cohesion and adhesion!
When we did our pH lab, do you remember which substance was the most acidic?
Soda!
Elements in the same periods have this in common.
The same number of rings (energy levels).
If carbon has 6 protons, what is its atomic number?
How many electrons does it have?
both answers are 6!
If we had made a paper clip float, which substance could we put in the water to make it sink?
Soap!