Atomic Theory
This is the scientist who is credited with developing atomic theory.
Who is John Dalton?
This number is found by adding the protons and neutrons of an atom together.
What is the mass number?
This is where the charge on an ion is written on the element's symbol.
What is the right-hand superscript?
This is the mass unit of an atom.
What is an atomic mass unit (amu)?
These three subatomic particles compose atoms.
What are protons, neutrons, and electrons?
This number is found by counting the number of protons in the nucleus of an atom.
What is the atomic number?
This is the name of an ion that contains more protons than electrons.
What is a cation?
True or False: Relative atomic mass is the same as the mass number.
False! The relative atomic mass is the weighted average of all naturally occurring isotopes.
The atomic number of an atom is synonymous with this subatomic particle.
What are protons?
DOUBLE JEOPARDY!!!
This number is found by subtracting the number of protons from the mass number.
What is the neutron number?
This is the name of an ion that has more electrons than protons.
What is an anion?
This is the value listed under the element's symbol on the periodic table.
What is the relative atomic mass?
This subatomic particle determines the isotope of an element.
What are neutrons?
This term refers to the weighted average taken of all naturally occurring isotopes of an atom.
What is the relative atomic mass?
This is the subatomic particle that is either gained or lost which determines the ionic charge.
What is an electron?
In order to find the relative atomic mass, you multiply the atomic mass by the _______ _________.
What is percent abundance?
These subatomic particles exist in the relatively large space outside the nucleus.
What are electrons?
Give the equation for calculating the mass number of an isotope.
What is A = Z + N?
True or False: The properties of ions differ from those of neutral atoms of the same element.
True! These ions combine to form compounds, which have different chemical properties than those of their component elements.
Determine the neutron number for the following isotope: Fe-56.
What is N = 30?