How are elements organized? Flashcards
1
Q
What is a periodic table?
A
Table of the chemical elements arranged in order of atomic numbers, usually in rows, elements with similar atomic structure appear in vertical columns. You can also see the trends.
2
Q
What info can you obtain from each element?
A
The atomic mass, mass number (no decimals) and symbol.
3
Q
What do rows represent?
A
number of atomic orbitals, energy levels.
4
Q
What do columns represent?
A
groups of elements.
5
Q
What are the six named families of elements?
A
1-Alkali metals 2-Alkaline earth metals 15-Pnictogens 16-Chalcogens 17-Halogens 18-Noble gases
6
Q
What is a periodic block?
A
Set of adjacent groups.
