VALENCY VACANCY
• In each turn, the player rolls a six-sided dice, Electron Dice (ED), ranging from 0 to 5,
and an eight-sided Charge Dice (CD ) ranging from -3 to 4.
• Each player continues from the previous player's place on the periodic table and on
the aufbau principle board.
• ED minus CD (ED – CD) gives the atomic number, i.e. number of electrons to be filled in
the aufbau principle board in each turn.
• The player moves their pawn piece to that element corresponding to that atomic
number on the periodic table.
• If ED plus CD (ED + CD) is equal to the stable atom charge of that element, they can
claim it.
• Players who complete a shell in the aufbau principle board get the element that their
piece is on.
• Players get
◦ 6 points for completing a complete shell. (for eg. 4 th shell etc)
◦ 5 points for getting an element of valency 0, +1, -1, or 2.
◦ 3 points for getting an element of valency 5 or 6.
◦ 2 points for getting an element of valency 3 or 4.
◦ 1 point for completing an orbital. (for eg. 4p6)
• When the end of the periodic table is reached, the player with the highest total wins.