Definitions
What is atomic radius?
The distance from the center of the nucleus to the valence electron shell.
Why do elements have the same properties in a family?
Same number of valence electrons.
Where are the electrons located in an atom?
Electron Shells
For atomic radius, as the Period # increases _____.
the # of electron shells and atomic radius increases.
What is electronegativity?
A measure of how strongly an atom can pull other electrons to itself.
Which family has elements that are the most reactive metals?
Alkali Metals
What do you use to identify the number of electron shells?
Period #
For ionization energy, as you increase the # of valence electrons ______.
Ionization energy increases.
What is ionization energy?
The amount of energy it takes to steal/remove electrons
Which family has the greatest electronegativity? (the greediest)
Halogens
What do you use to identify the number of valence electrons?
Group #A
Electronegativity increases to the right except _______.
Group 18/8A , Noble Gases
What is a Bohr Model?
A visual representation of an atom.
Which family has elements that have varying valence electron (v.e.)?
Transition Metals
What do you use to identify the number of total electrons?
Atomic #
Who has the highest ionization energy?
Helium, He
What is a chemical property?
How a substance reacts when undergoing a change.
Which family has the highest ionization energy? (hardest to steal from)
Noble Gases
How do you calculate the number of neutrons?
Mass # - Atomic #
Who has the highest electronegativity?
Fluorine, F