Modern Periodic Table Flashcards
Why are the Lanthanides and Actinides pulled out of the table?
For convenience. If they are in, the Periodic Table becomes much longer. They are put on the bottom instead.
Why are the Lanthanides and Actinides pulled out of the table?
For convenience. If they are in, the Periodic Table becomes much longer. They are put on the bottom instead.
How many elements are shown on the Modern Periodic Table?
118 elements.
How many of the 118 elements are radioactive?
35 elements are radioactive.
How many of the 118 elements are man-made?
25 elements are man-made. They are also radioactive.
What are Groups/Families and Periods?
Groups (or Families) are Vertical Columns and Periods are Horizontal Rows.
What is a Distinguishing Electron?
The last electron added to an element. Looking at it can be a useful way of characterizing elements.
What type of element is it when the s or p is the last electron?
Representative.
What type of element is it when all s and p are filled?
Noble Gas.
What type of element is it when the last electron was a d?
Transition.
What type of element is it when the last electron was an f?
Inner Transition.
