the modern periodic table Flashcards
1
Q
what order are elements put in
A
the increasing atomic number
2
Q
what are groups in the periodic table
A
elements with similar chemical properties
3
Q
what is the elements group number the same as
A
the number of electrons it has in its outer shelll
4
Q
what are the rows called and what are they
A
periods
an elements period number tells you how many shells of electron it has
