Periodic Table
What is the name of the rows (side to side) periodic table?
Rows = Periods
What is the name of the elements that border the Zig-Zag line?
The Metalloids
What is a valence electron?
What is the smallest element on the periodic table?
Helium
Which element has the lower electronegativity?
Rb or Ar
Ar
What is the name for columns (up and down) on the periodic table?
columns= groups
Group 18 name
The Noble Gases
How many electrons does an atom want in its valence shell to become stable? (Octet rule)
All elements want to get to 8 valence electrons to become stable.
Define electronegativity
The ability of an atom to attract an electron
Define Atomic Radius.
The size of an atom
The distance from the center of the atom to the outermost ring.
What is the name of the family with 7 valence electron?
The Halogen Family
What is the name of the family that has 1 valence electron?
Alkali metals
What is the most reactive metal?
Francium
Which atom is larger S or Po?
WHY?
Po because it has more electron shells
Across a period (left to right) ionization energy ________ (inc/dec)
Down a group ionization energy _________ (inc/dec)
Across a period ionization energy INCREASES
Down a group ionization energy DECREASES
The Periodic Table is mostly composed of
metals
Group 2 name
The Alkaline Earth Metals
Which GROUP of metals is the most reactive?
group 1- alkali metals
Which element has the higher Electronegativity?
WHY?
Sr or Te
Te, because it is a smaller atom meaning its electrons are close to the nucleus and tightly held onto due to having more protons
List the following elements by increasing atomic radius
Fe, S, Ca, F
F, S, Fe, Ca
How many valence electrons does the element with an atomic mass of 79.90 have?
7
What is the name of group 17?
Halogens
Which non metal is the most reactive?
F
What is the trend in regards to electronegativity?
increases up and to the right
A small atom will have a ________ (high/low) electronegativity.
A small atom will have a HIGH ionization energy.