# On the periodic table: The horizontal rows are called ____________ The vertical columns are called ___________ Identify elements by their properties and.

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On the periodic table: The horizontal rows are called ____________ The vertical columns are called ___________ Identify elements by their properties and placement on the periodic table.

Links: What Holds a Molecule Together? Ionic Bonding: Interactive Tutorial

12 345678910 1112131415161718 Periodic Table Hydrogen 1 Helium 4 Lithium 7 Beryllium 9 Boron 11 Carbon 12 Nitrogen 14 Oxygen 16 Fluorine 19 Neon 20 Sodium 23 Magnesium 2 4 Aluminum 27 Silicon 28 Phosphorus 31 Chlorine 35 Argon 40 Sulfur 32 Group 1 Group 2Group 13Group 14Group 15Group 16Group 17 Group 18 1 P 0 N 2 P 2 N 3 P 4 N 4 P 5 N 5 P 6 N 6 P 6 N 7 P 7 N 8 P 8 N 9 P 10 N 10 P 10 N 11 P 12 N 12 P 12 N 13 P 14 N 14 P 14 N 15 P 16 N 16 P 16 N 17 P 18 N 18 P 22 N Atomic weight or mass Atomic number

Atoms like to have a filled outer shell of electrons. Sometimes, by transferring electrons from one atom to another, electron shells are filled. The atom that gives away an electron will take a positive charge, and the receiving atom will have a negative charge. The charged atoms or ions will be attracted to each other, and form bonds.

Some atoms like to share electrons to complete their outer shell. Like this oxygen atom. It needs 2 electrons to follow the 2/8/8 rule. In this case to make water, you would need 2 hydrogen atoms. By sharing electrons the hydrogen atom is also able to complete it’s electron shell. Hydrogen bonds are primarily covalent bonds and a regular covalent bond is very strong. Oxygen

On the Inside BY YOURSELF complete BOTH sides of the “On the Inside” worksheet. You do NOT have to draw the Oxygen Atom GO ON

Website Click the link below & then click LAUNCH http://www.pbslearningmedia.org/resource/ls ps07.sci.phys.matter.theatom/the-atom/ Now try this more challenging website & click on ATOM BUILDER ACTIVITY http://www.pbs.org/wgbh/aso/tryit/atom/# **Hint: Use “The Atom Builder Guide” links at bottom of page for help

Interactive Periodic Table Game CLICK ON PICTURE:

___Ductile ___Malleable Able to be pulled into a long wire c d Able to be hammered or rolled into a shape ___Brittleg Easily broken and is not able to be molded or shaped ___ Conductor of electricity k Allows electricity to flow freely

___ Conductor of heat ___Dull Allows heat to flow freely l n Not shiny ___Softm Not hard ___Shiny i Lusterous

___ high boiling point ___ High melting point Boils at a high temp. so is usually a liquid at room temperature h j Melts at high temp. so is usually a solid at room temperature ___ Semiconductor f Will carry electricity only under certain conditions ___Opaque a Not clear or transparent

___Density ___Reactive b e Will quickly & easily combine with other elements D=M÷V, determines is it will sink or float

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