Subatomic Particles
The atomic number always corresponds to the number of this particle
What is a proton?
This type of attractive force exists between the nucleus and the electron cloud
What is electromagnetic force?
Isotopes of the same element contain the same number of protons but a different number of this subatomic particle.
What is a neutron?
This type of radiation consists of two protons and two neutrons
What is an alpha particle?
These two particles must be present in equal quantities for an atom to be electrically neutral
What are protons and electrons?
This force overcomes the repulsive force between protons in the nucleus
What is the nuclear force?
An isotope of sulfur (S) with a mass of 35 has this many neutrons
This type of radiation consists of a high energy electron with no appreciable mass
What is a beta particle?
These extremely small particles are responsible for the strong nuclear force which exists between protons and neutrons
What are quarks?
This is the name of the region where an atom's outermost electrons are located
What is the valence shell?
The most abundant isotope of carbon has this mass
What is 12?
This type of nuclear reaction generates radioactive waste as a result of a chain reaction
What is fission?
Forces between these particles are responsible for the majority of an atom's volume
What are electrons?
This element is located in period 2 and has 7 valence electrons
What is fluorine?
What is 18?
A radioactive isotope of carbon reacts to form a stable isotope of nitrogen. This type of decay most likely occurred.
What is beta decay?
While protons and neutrons each have masses of 1 amu (atomic mass unit), electrons have this mass (approximate value accepted)
What is 1/1836 amu (1/2000 accepted)
The most abundant isotope of scandium (Sc) has this many neutrons
What is 24?
This is the isotope which results when Uranium-238 (238U) undergoes alpha decay
What is Thorium-234 (234Th)?