Periodic Table Crossword Puzzle

The first element in the Periodic Table
The vertical columns on the periodic table
The horizontal rows on the Periodic Table
This element has 12 protons
The period that uses 6 energy levels to hold all of the electrons in their atoms
This element has a mass of about 40 a.m.u.
The _____ are the types of elements found between the metals and the nonmetals
This element is in group 17, period 4
This is the 6th lightest element
These elements appear on the right-hand side of the periodic table
This is the only metallic element that is a liquid at room temperature
Most of the elements in group 18 can be found as this state of matter
This is the heaviest metal in period three
This element has 26 electrons when it is a neutral atom
This element has the chemical symbol W
This is the fourth actinide element
These elements are unstable and will decay into other, more stable elements over time
This element has the chemical symbol Au
This element is in period 5, group 2
This element has 56 protons in its nucleus
This element's most common isotope will have 8 neutrons.
This metalloid is just a little bit heavier than the element tin
This is the lightest metallic element
This element is almost 4 times as massive as nitrogen.