The Periodic Table Flashcards
(5 cards)
What does the periodic table do?
Puts elements with similar properties in colums
What are atoms represented by?
Symbols
What are the vertical columns called
Groups, Roman numerals are often used for them
What is significant about groups
All of the elements in the group have the same number of electrons in their outer shell
What are group 1 elements
All metals and they all react in the same way
E.g all react with water to form an alkaline solution