There are 18 of these and they are numbered across the top of the periodic table

There are 7 of these numbered down the left side of the periodic table

A _____ shows you elements in a row across the periodic table.

The group number tells you the number of ___ in an atom.

The period # tells us how many _____ there are in an atom.

A group of elements with similar chemical properties: ____

All elements in Group 1 have ____ valence electron(s).

Elements in period 3 have ___

The family of elements in group 18: ___

Elements on the staircase are known as: ____

Most of the elements on the periodic table are ____.

Elements to the right of the staircase are ____.

Elements to the left of the staircase: _____.

Elements that are gas at room-temperature.

Elements that are shiny and solid at room-temperature.

Elements used as semi-conductors

The modern day periodic table is arranged by increasing ________.

Atomic Number = # of ____.

These determine how an element will bond (chemically react) with other elements.

Smallest unit of an element that maintains the properties of the element