Groups on the Periodic Table
This group of elements are very stable with a full octet.
What are noble gases?
These electrons are the outermost part of the atom.
What are valence electrons?
How many groups are on the periodic table? Periods?
What are 18 groups and 7 periods.
What happens to the size of atoms as we move across a period (left -> right)? What about down a group?
Atomic radii decrease across a period and increase down a group
Which of the following atoms has the largest radius? Sodium or Scandium
Scandium
This group is in column 1, with 1 valence electron, making them extremely reactive.
What are alkali metals?
An atom with more electrons than protons is this
What is a negative ion (anion)?
The tendency for an atom to form an ion with 8 valence electrons
What is the octet rule?
What happens to effective nuclear charge as we move across a period (left -> right)? What about down a group?
Effective nuclear charge increases across a period and decreases down a group
Which atom is the most electronegative? Fluorine or Neon
Fluorine
This group makes up the whole d-block in the center from groups 3 to 12
What are transition metals?
An atom with less electrons than protons is this
What are cations?
This is the size of the atom. The distance from the nucleus to the valence electrons.
What is atomic radius?
What happens to electronegativity as we move across a period (left -> right)? What about down a group?
Electronegativity increases across a period and decreases down a group
Which atom has the largest first ionization energy? Magnesium or Germanium
Germanium
This group has 2 valence electrons and is slightly harder and more dense than the group before it.
What are Alkaline Earth Metals?
Which is larger: An Na+ cation or the parent atom of Na?
What is the parent atom of Na.
The energy required to remove an electron. This is highest in the top right corner of the periodic table.
What is ionization energy?
What happens to ionization energy as we move across a period (left -> right)? What about down a group?
Ionization Energy increases across a period and decreases down a group
Which atom is the least electronegative? Iron or Strontium
Strontium
This group is located in group 17, has 7 valence electrons, and is very reactive.
What are halogens?
Which is larger: An F- anion or the parent atom of F?
What is F-.
The tendency for a chemical element to attract bonding electrons towards it.
What is electronengativity?
What happens to the shielding effect as we move across a period (left -> right)? What about down a group?
The shielding effect remains unchanged across a period and increases down a group
Which atom has the smallest radius? Oxygen or Phosphorus
Oxygen