Periodic Table
What is the name of the rows on the periodic table?
Periods (half point for energy levels)
What is the name of the elements that border the Zig-Zag/staircase line?
The Metalloids
What is a valence electron?
Location of the element with the smallest atomic radius.
Top right of the table.
Which element has the lower electron affinity?
Na or Mg
Na
The Modern Periodic Table is organized based on one number. What is this number?
Atomic Number
What is the name of the family that has the largest atomic radius on the Periodic Table?
The Alkali Metals
Which metal is the most reactive?
Fr
Which element has the higher electronegativity?
Sr or Te
Te, because it is a smaller atom meaning its electrons are close to the nucleus and tightly held onto.
Takes a lot of energy to remove an electron
List the following elements by increasing atomic radius
Fe, S, Ca, F
F, S, Fe, Ca
How do you find the number of valence electrons in an element?
On your periodic table, columns 1, 2 and 13-18!
The most nonreactive family of the periodic table.
The Noble Gases
Which of the following would have the smallest radius
S, Cl, Ar, P
Ar
Define electronegativity and it's trend.
The tendency of an atom to attract a shared electron. Up and to the right it increases.
which atom will have the highest electronegativity and why?
Ne, Li, C
C, it is further right than Li. Ne already has a full valance shell so does not want anymore electrons.
What is the name of the family with 7 valence electron?
The Halogen Family
What is the name of the family that has 2 valence electrons?
The Alkaline Earth Metal Family
What family satisfies the octet rule always?
The Noble Gases
Define electron affinity, and state the trend
The attraction to electrons, or the energy released when an atom gains an electron; up and to the right (stops at noble gases)
Across a period (left to right) electron affinity ________ (inc/dec)
Down a group electron affinity _________ (inc/dec)
Across a period electron affinity INCREASES
Down a group electron affinity DECREASES
The trend for atomic mass in the periodic table.
Increases going down and to the right.
What is the name for columns on the periodic table?
Groups/Families (half points for valence electrons)
Do noble gasses have electron affinities? Why...
no, they have a full outer shell, 8 valence electrons
A large atom will have a ________ (high/low) electronegativity and a _________ (high/low) electron affinity.
low and low
A small atom will have a ________ (high/low) electronegativity and a _________ (high/low) electron affinity.
A small atom will have a HIGH electronegativity and a HIGH electron affinity.