Four Forces
The 4 Forces of Creation that we have studied so far up until and including Module 13
What are gravitational force, electromagnetic force, weak force and strong force?
The definition of an element.
What is "a substance with atoms that have all the same number of protons"?
These particles hold quarks together.
What are gluons?
This particle's mass is 1 atomic mass unit (amu).
What is a proton?
This determines how an atom gets its atomic number.
What is the number of protons in an atom?
This is another name for a weak force and electromagnetic force together?
What is electroweak force?
This is how an element usually gets its symbol.
What is the first 1 or 2 letters in it's name?
This is what an atom with an unstable nucleus must do.
What is decay?
The number of electrons in each of the first 5 electron orbits.
What is 2, 8, 18, 32, 50?
These particles of matter make up protons and neutrons.
What are quarks?
What is the weak force?
This is how elements in the periodic table are ordered.
What is by the number of protons?
The definition of half life.
What is "the time it takes for half of the original sample of a radioactive isotope to decay"?
This is the state of a neutron when it is by itself.
What is unstable?
This scientist developed a model of the atom in 1913.
Who is Niels Bohr?
If the electrons negative charges were one billionth of one percent different from the proton's positive charge, THIS would happen.
What is an explosion of the atom?
This is the number that appears underneath the chemical symbol of the element in the periodic table.
What is the atomic mass of the element?
In this type of radioactive decay, the nucleus of an atom releases a gamma ray.
What is gamma decay?
These particles are 1/2000th the size of a proton.
What are electrons?
T/F: The electron shells of atoms fill up from the outside in.
What is false?
The strong force holds protons and neutrons together in the nucleus through the exchange of these tiny particles.
What are pions?
The definition of isotope.
What is "two or more atoms with the same number of protons but different numbers of neutrons"?
In this type of decay a neutron splits into a proton and and electron.
What is beta decay?
In this type of radioactive decay, the nucleus splits out a helium atom.
What is alpha decay?
This is the more accurate but complicated model of the atom than the Bohr model.
What is the Quantum-Mechanical model?