Electrons and Chemical Bonding Day 1

You Will Need:• Pencil, Text Book- Periodic

Table, Colored Pencils2. Electrons and Chemical

Bonding- 2 pages-4 sides (Pick-up from bookshelf- Please Staple)

4. Balancing Equations #1- Due Today

Please SCHEDULE:

• To take Part 1 or 2 for the 1st time

• Retake Test #4

• Part 1 – 80/115 or lower

• Part 2 – 93/135 or lower

• Parent Signature and Corrections – due Tomorrow

• The substances on the left side of a chemical equation are called this…..

• What is the number called in front of a chemical formula that tells you how many models to build?

• What Law states you can neither create or destroy matter?

• The substances on the right of the chemical equation are called this……

• What type of substance slows down or stops a chemical reaction?

• Numbers in a formula that represent the number needed of each atom in a compound are called this……

• Why are elements’ atoms on the periodic table neutral?

• The number of electrons on the outermost shell of an atom is called the atom’s ___________.

• How many more bonds does Nitrogen need to have a full outer shell?

• To slow down or stop a chemical reaction you would use an ____________.?

Chemical Bonding is the joining of atoms to form new substances.

The properties of these new substances are different from the properties of the original elements.

Understanding the Electron Configuration for each atom will help you understand how different elements will bond.

Not all the electrons in an atom are used to make chemical bonds.

Understanding the Electron Configuration for each atom will helps you understand how different elements will bond.

It is the electrons on the OUTER-MOST Level or VALENCE electrons, that determine how an atom will react. (bond)

Atoms want to be “happy”….in other words, have a full outer shell.

Complete the chart by using your Periodic Table.

“Magic Number is “8”

Element Group Valence Bond or Not Bond

Hydrogen

Sulfur

1 1 Bond

16 6 Bond

• Usually between Metals and Nonmetals

• Transfer of electrons – atoms become IONS

• Form Crystal lattices

Bismuth

• Are Brittle

• High Melting and Boiling points

• Dissolve Easily in water

• Form compounds

• Specific Shape

SALT

P=13N=14

Neutral Atom of Aluminum

Positively Charged Aluminum Ion (3+)

P=13N=14

P = 13+N = 14

28

3P = 13+N = 14

2 8

Neutral atom because it has equal amounts of plus and minus particles.

Positive ION because it has MORE protons than electrons.

Page 231

• Go to Learning Point• Select “Daily Assignments”• Select this week: Jan 2 nd-6 th• Select Creating Ionic Compounds

REMEMBER: The reason these atoms are bonding is because they are oppositly charged. Positive to Negative Attraction.

Metals – Give away electronsNonMetals – Take electrons

• Balancing Equations #1– Due today

• Signed & Corrected Test #4- Due tomorrow

• Electrons and Chemical Bonding– Due by Friday