This is the relevance of an isotope or rate at which it occurs in nature compared to other isotopes of the same element.
What is Percentage Abundance?
This is how many protons a neutral atom with 13 electrons possess.
What is 13?

This is the units of measurement that atoms of elements are weighed in.
What is Atomic Mass Units (u)?
This subatomic particle determines the identify of an isotope.
What is Protons?
This measure the amount of subatomic particles in the nucleus of an atom.
What is Mass Number?
An atom has 15 protons and 17 neutrons. What is the name of this element in hyphen notation form?
What is Phosphorus-32?

What is Nitrogen-14?
This subatomic particle is responsible for varying masses of isotopes.
What is Neutrons?
A material's ability to be pulled and stretched thin into a wire without breaking.
What is Ductility?
This measures how much a certain isotope weighs.
What is Atomic Mass?
An element has 6 protons, 8 neutrons, and 6 electrons. This is the type of element that the isotope is.
What is Carbon?
An atom has 14 neutrons and 14 electrons. This is the isotope name in hyphen notation.
What is Silicon-28?
RAM of Nitrogen isotopes:
Nitrogen-14 ... 99.63% ... 14.003 u
Nitrogen-15 ... 0.37% ... 15.0001 u
What is 14.0067 u?
This scientists won a Nobel Prize in Physics for his discovery of the charged particle called the electron in the atom.
Who is J.J. Thomson?
This is a definition for isotopes.
What is "Atoms of the same element with different numbers of neutrons in their nuclei."
An atom has 15 protons, 15 electrons, 17 neutrons. This is the relative atomic mass of all elements of this isotope.
What is 30.974 u?
This is an isotope of Tungsten in hyphen-notation form with 106 neutrons.
What is Tungsten-180?
Magnesium isotopes
Magnesium-24 ... 78.99% ... 23.985 u
Magnesium-25 ... 10.00% ... 24.986
Magnesium-26 ... 11.01% ... 25.982
What is 24.305 u?
This group on the periodic table is often shiny and silvery, semi-conductive, and typically unreactive with acids.
What is Metalloids?
The weighted average of masses of all known, natural isotopes of an element.
What is Relative Atomic Mass?
This is the likely mass number of a Carbon isotope with an atomic mass of 13.00335.
What is 13?
This is the name of in hyphen notation of a metalloid that has a mass number of 11.
What is Boron-11?
Gallium isotopes
Gallium-69 ... 60.11%
Gallium-71 ... 38.89%
What is 69.609 u?
DOUBLE JEOPARDY: This question is worth double the points.
This is the Russian scientist that is responsible for the organization of the modern periodic table.
Who is Dmitri Mendeleev?