Who's that Scientist?
This scientist introduced the idea of the electron cloud to the atomic theory, and should never be allowed to own a cat. Who is it?
Erwin Schrödinger (Yeah, big no on the cats...)
Definition: Electron
A negatively charged particle, exists in a cloud around the outside of an atom.
What metal is this: A shiny metal that has the symbol Au as well as 79 protons.
Gold
The project that invented the atomic bomb.
The Manhattan Project
If an atom has a charge of zero, seven protons, and eight neutrons how many electrons does the atom have?
Seven Electrons
This scientist had a popular (although long) movie made about his work on the atomic bomb during World War 2.
Robert Oppenheimer
Definition: Isotopes
Atoms of the same element which have different atomic masses caused by differing numbers of neutrons.
What is a light gas and the second element on the periodic table with two protons?
A highly radioactive substance which poisoned the workers who used it to paint the hands of watches. (From the video on Monday)
Radium
If an atom has twelve neutrons, thirteen electrons, and thirteen protons what would it's atomic mass be?
Twenty five
Name of the model proposed by Bohr (although inaccurate) is ___________.
- Planetary Model
- Solar Model
Definition: Half-Life
The amount of time it takes for half of the atoms in a substance to decay.
An equation for a natural elemental reaction has how many inputs?
1
Which of the following particles if most dangerous if something carrying them is ingested?
(Note: All are still dangerous, DON'T ingest anything that has been exposed!)
A: Alpha Radiation
B: Beta Radiation
C: Gamma Radiation
D: Sigma Radiation
A: Alpha Radiation
What % of an original undecayed element would be left after 4 half lives of that element?
6.25%
Which scientist shot a beam of alpha particles at a sheet of gold foil, and discovered the nucleus?
Bonus: What President did he share part of a name with?
Ernest Rutherford
Bonus: Rutherford B. Hayes
Definition: Wavelength
The distance between the peaks and lows of a wave
On the periodic table of elements, how many rows and columns are there?
(Note: If you don't assign a number to each and instead just write two #s, no points will be given.)
Bonus: What is the term for each?
7 rows (Periods) and 18 columns (Groups)
The two elements used in the creation of the first two atomic bombs?
Plutonium and Uranium
If Radium - 222 (Atomic # 88) were to decay into Radon - 216 (Atomic #86), what would the decay mode be?
Alpha Decay
What is the name of the ancient greek philosopher who came up with the basic idea of the atom?
Democratis
Definition: Beta-Particle
A high energy electron ejected from the nucleus during Beta Decay.
List any six elements along with their symbols and atomic numbers.
(Note: No partial credit will be given, all or nothing! And Radium and Radon can't be used.)
Owen will give points accordingly
Name four types of ionizing radiation.
(Note: No partial credit will be given.)
Any four of: Alpha particles, beta particles, gamma rays, X-rays, and neutrons.
Concentrated Chemistry!
Time to wager some points!
During the Explore: Positive Uses of Radioisotopes an element was specially mentioned for it's use in smoke detectors. What does that element do in smoke detectors?