Chemistry 2.1 The periodic table Flashcards
1
Q
How are elements arranged in the periodic table?
A
in order of atomic number
2
Q
What are the columns in the periodic table called and what do they contain?
A
they are called groups
they contain elements with similar properties
3
Q
Why is it called periodic table?
A
Similar properties occur at regular intervals
4
Q
What do elements in the same group have in common?
A
The same number of electrons in the outter shells, similar chemical properties
