Periodic Table Crossword

The first person to make a list of the elements.
This person was given credit for developing the first Periodic Table.
What is the name of the horizontal rows on the Periodic Table called?
What are the vertical columns on the Periodic Table called?
What is another name for the groups 1A- 8A?
What is the name of the groups inthe middle ofthe Periodic Table (1B-8B)
The distance between the nucleus and the valence electron shell - How big an atom is.
Atoms which have lost or gained an electron.
Positive ions.
Negative ions
The energy necessary to remove an electron from an atom.
Atoms tend to gain, lose, or share electrons in order to acquire a full set of eight valence electrons.
Ability of an element to attract an electron in a chemical bond.
A periodic repetition of chemical and physical properties of the elements exist when they are arranged by increasing atomic number.
Elements that are generally shiny when smooth and clean, solid at room temperature, and are good conductors of heat and electricity.