Elements in a Group Have the Same Number of Outer Electrons Flashcards
1
Q
What do the elements in any one group have?
A
The same number of electrons in their outer shell
2
Q
What does this mean?
A
They have similar properties
3
Q
How was the periodic table made?
A
By looking at the properties of the elements and arranging them in groups - the same groups as today
4
Q
What do the properties of the elements depend on?
A
The number of electrons they have
5
Q
Why is the atomic number very significant?
A
It is equal to the number of electrons each atom has
6
Q
What is the really important thing?
A
No. Of electrons in outer shell
