Ionic Bonds

Stability

Strength to stand or resistance to chemical change or physical disintegration.

Octet Rule

Tendency of atoms to prefer to have eight electrons in the valence shell

Chemical Bond

-Strong force that bonds the compounds together.

-Atoms gain, lose or share their electrons with other atoms.

3 Things To Consider When Identifying A Chemical Reaction

1.Valence electrons

2.Noble gas configuration

3.Formation of Lewis Structure

Noble Gas Configuration

-Inert gases

-Group 8A or Group 18 – located in the last column of the periodic table.

-Do not easily react to other elements under normal conditions.

-Most stable due to having the maximum number of valence electrons their outer shell can hold

Compounds

Elements react with one another forming a new substances.

Ionic bond

Chemical Bond that form when there is transfer of electrons from one atom to another. This formation always involves bonding between a metal and a nonmetal.

Ionic Compounds

-It involves the gaining and losing of electrons.

-Charge particle will now be called ions.

-Solid at room temperature and have high boiling and melting points.

-Poor conductors of electricity but when dissolved in water, these compounds conduct electricity since ions are free to move and carry the energy

Cation

Atom that loses an electron becomes a positively charged ion.

Anion

Atom that gains an electron becomes negatively charge ion.

Metallic elements

Lose electrons due to low ionization energy

Non-metallic elements

Gain electrons due to low ionization energy

Lewis Electron Dot Structure (LEDS)

-Proposed by Gilbert N. Lewis, is used to emphasize the atom’s valence electrons.

-Shorthand method consists of a symbol of the element surrounded by dots.

Na+

Controls and regulates bodily fluids

K+

Controls and regulates bodily fluids particularly the osmotic balance in the kidneys.

Ca²⁺

Components of bones and teeth.

Mg²⁺

Components of chlorophyll; plays assisting role for metabolic function.

Cl𝑵𝒂𝑵𝑶𝟑 (𝒔𝒐𝒅𝒊𝒖𝒎 𝑵𝒊𝒕𝒓𝒂𝒕𝒆) - Used as a meat preservative.

Most abundant anion.

NaNO₃ (Sodium Nitrate)

Used as a meat preservative.

CaF₃ (Calcium Fluoride)

Component of toothpaste.

AgBr & AgCl (Silver halides)

Used in the photographic industry to make films.

NaOH (Sodium hydroxide)

Used in the manufacture of soaps.

Al₂O₃ (Aluminum Oxide)

One of the most used compounds in engineering processes like in the making of airplanes due to its light weight.