Show:
Nuclear Forces
Radioactivity
Half Life
History of the Science
Miscellaneous
100
This is what holds the nucleus of an atom together.
What is the Strong Nuclear Force?
100

Radiation of particles, as well as decay of elements happens to these types of elements.

What are elements with unstable nuclei?

100

In a single half-life, an element decays by this much.

What is half of an element?

100
This particle was discovered by JJ Thomson with his famous Cathode Ray Experiment.
What is an electron?
100
This particle is the antiparticle of a proton.
What is an antiproton?
200
This force is what causes atoms to decay.
What is Weak Nuclear Force?
200
This particle is a product of nuclear decay, and denotes a loss of two protons.
What is a Beta Particle?
200

The scientist who discovered half life.

Who is Ernest Rutherford?

200

This was the first nuclear reactor which achieved criticality in 1942. 

What was The Chicago Pile?

200

When an Alpha particle is released as a part of radiation, it is known as this particle.

What is the nucleus of a Helium atom?

300
When Strong Nuclear Force is utilized to generate energy, it is through this process.
What is Nuclear Fission?
300

This type of decay is the least penetrable type of radiation, and is a result of an atomic nucleus gaining a proton.

What is Alpha Decay?

300
Shorter half lives mean that a given element or elemental isotope is less of this, while longer half lives are stronger indicators of this characteristic.
What is a stable element?
300

This scientist recognized the pattern of the properties in elements and created the basic periodic table we know today.

Who is Dmitri Mendeleev?

300

While atoms are generally considered the smallest divisible particle that exists, they are actually made of smaller particles called by these names.

What are quarks and gluons?

400

This is the process by which massive amounts of nuclear energy is generated by taking advantage of the Strong Nuclear Force.

What is Nuclear Fusion?

400

This is the unit to measure radioactive decays per second and is equal to 3.7*10^10 Bq.

What is a Curie?

400
An element that has a high amount of this usually has a very short half life, and should be regarded very carefully when handling.
What is radioactivity?
400
This scientist determined that electrons exist in stable energy levels, and change energy levels by disappearing and simultaneously reappearing in the energy level above or below the previous one.
Who is Niels Bohr?
400
When a particle and its' antiparticle come into contact, this type of event occurs, releasing inordinately high amounts of energy.
What is an annihilation event?
500
This is what the decay of large or unstable elements is called, and is a principal part of Nuclear Physics.
What is Radioactivity?
500
This particle is of the highest energy, and will penetrate most surfaces- it is a result of electrons within the atom changing energy levels.
What is a Gamma Particle?
500

Over 50 half-lives, an element will decay by this factor.

What is 1/8.88x10^-16 or 2^-50?

500

Ernest Rutherford determined the difference between these particles, and is famous for determining that these types of radiation even exist.

What is alpha and beta radiation?

500

List these particles in order from lowest to highest penetration: Neutron, B Particles, a Particles, x-ray, Gamma ray. 

Low to High: Alpha, Beta, x-ray, Gamma ray, Neutron