Vocabulary CH 4
the distance between corresponding points on adjacent waves
What is wavelength?
an arrangement of the elements in order of their atomic numbers so that elements with similar properties fall in the same column or group
What is a periodic table?
Principle that states an electron occupies the lowest-energy orbital first
What is Aufbau Principle?
element with the highest electronegativity
What is Fluorine?
proposed a model based on the behavior of Hydrogen atoms
a form of energy that exhibits wavelike behavior as it travels through space
What is electromagnetic radiation?
Group 1 metals
What are alkali metals?
A form of electron configuration notation that uses noble gas configurations
What is noble gas notation?
Group 17
What are halogens?
arranged the elements based on atomic number
Who is Henry Moseley?
a three dimensional region around the nucleus that indicates the probable location of an electron
What is an orbital?
main group elements
What are s block and p block elements?
Element with an electron configuration of 1s22s22p5
What is Fluorine?
What are noble gases?
Tried to determine the location of electrons and developed the uncertainty principle
Who is Werner Heisenberg?
(n) indicates the main energy level occupied by the electron
What is principal quantum number?
a positive ion
What is a cation?
Noble gas configuration of Phosphorus?
typically form cations
What are metals?
Father of the periodic table
Who is Dmitri Mendeleev?
no two electrons in the same atom can have the same set of 4 quantum numbers
What is the Pauli Exclusion Principle?
measure of the ability of an atom in a chemical compound to attract electrons from another atom in the compoun
What is electronegativity?
Complete electron configuration for Iodine
What is 1s22s22p63s23p64s23d104p65s24d105p5?
group of elements not freely found in nature and are highly reactive with water
What are alkali metals?
Created an equation that treated electrons as waves and developed the electron cloud model of an atom
Who is Erwin Schrodinger?