Chemistry
From the standpoint of atomic structure, what determines which element will be the first and which the last in a period of the periodic table ?
Related Questions
What is the main characteristic of the last element in each period of the Periodic Table? What is the general name of such elements?
What is meant in the periodic table by :
(a) a group, and
(b) a period?
(a) What are the following groups known as?
- Group 1
- Group 17
- Group 18
(b) Name two elements of each group.
What is the number of elements in the :
(a) 1st period, and
(b) 3rd period, of the modern periodic table?