Definitions
These are atoms of the same element with different mass numbers.
What is Isotopes?
Type of spontaneous decay that emits an electron.
What is Beta (-) Decay?
When low-mass nuclei combine to form a heavier, more stable nucleus.
What is Nuclear Fusion?
The main unstable Carbon isotope used in Carbon dating.
What is Carbon-14?
This is the atomic number and relative atomic mass of the element Carbon.
What is 6 and 12.011 u?
This is the time required for half the atoms of a radioactive isotope to spontaneously decay.
What is Half Life?
The type of radioactive decay that reduces an atom’s atomic number by 2.
What is Alpha Decay?
This is the nuclear process that takes place in the core of stars, and releases the largest amount of energy.
What is Nuclear Fusion?
If an isotope has a half life of 6 years, this is how many half lives have passed after 20 years.
What is 3 half lives?
This is the scientist that discovered the atom had charged particles called protons in a dense nucleus.
Who is Ernest Rutherford?
This refers to the nucleus of an unstable isotope disintegrating and releasing particles and energy.
What is Radioactive Decay/Spontaneous Decay?
Spontaneous decay in which a position is emitted.
What is Beta (+) Decay?
A chain reaction of unstable isotopes undergoing spontaneous decay that release particles that collide with other unstable isotopes and release large amounts of energy.
What is Nuclear Fission?
You have 200 grams of an isotope. After 18 years you have approximately 25 grams. This is the half life of this isotope.
What is 6 years?
This is the scientist that discovered the atom is primarily empty space.
Who is Ernest Rutherford?
A particle released in a certain time of spontaneous decay equivalent to a Helium-4 nucleus.
What is Alpha Particle?
This is the type of radioactive decay that’s radiation has the strongest penetrating power.
What is Gamma radiation?
The nuclear process used in nuclear power plants to generate usable energy.
What is Nuclear Fission?
You have 400 grams of an isotope. After 45 years you have approximately 12.5 grams. This is the half life of this isotope.
What is 9 years?
This physical property refers to an elements interaction with light (shine, reflection, absorption, transmission).
What is Luster?
A special proton-proton force of attraction that occurs at distances of 2 femtometers or less.
What is Strong Force?
These are all the radioactive decay types that result in a change in element identity of an isotope.
What is Beta (-), Beta (+), and Alpha decay?
In nuclear fusion in the core of stars, a first element collides with an alike element to synthesize a new element. These are the colliding elements and the resulting element.
What is Hydrogen & Helium?
You have 500 grams of an isotope. After 1 minute and 30 seconds you have approximately 62.5 grams. This is the half life of this isotope.
What is 30 seconds?
This is the natural isotope of Cobalt and the synthetic isotope of Cobalt.
What is Cobalt-59 & Cobalt-60?