Grade 9 Science – Unit 1 – Chemistry More on Matter More Physical and Chemical Properties Periodic TableNaming Chemicals 11111 22222 33333 44444 55555.

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Presentation transcript:

Grade 9 Science – Unit 1 – Chemistry More on Matter More Physical and Chemical Properties Periodic TableNaming Chemicals Bohr Rutherford Diagrams

This substance occurs when two or more Elements combine to make one new substance.

What is Mixture?

Anything with mass and volume

What is Matter?

A Compound can break down to it.

What is Element?

The type of mixture that, like chocolate milk, contains many substance that mix equally.

What is a Solution?

Made up of elements or ingredients that are not alike or mixed completely.

What is heterogeneous?

A property which can be determined without changing something chemically.

What is Physical Property?

A description of the way light interacts with the surface of a crystal, rock or mineral.

What is lustre?

The resistance of a substance to surface abrasion

What is Hardness?

The temperature at which a liquid becomes a solid.

What is Freezing Point?

The way elements combine with each other such as the formation of rust (iron oxide), which is produced when oxygen in the air reacts with iron.

What is a Chemical Property?

It contains the protons and the neutrons

What is Nucleus?

The maximum number of electrons in Orbit #1

What is Two?

The number of electron shells in Calcium

What is four?

The number of electrons that must be “given or taken” for the element Sodium to reach a stable electron configuration (see diagram)

What is one?

The number of aluminium atoms in the compound Aluminium sulfide (Al 2 S 3 ).

What is two?

The number of neutrons in Chlorine if its Atomic Mass is 35

What is 18?

The number of electrons that Oxygen (O), Sulfur (S) and Selenium (Se) need to “take” to become stable (i.e., full outer shell of electrons)

What is two?

The number of protons in Potassium (Chemical Symbol is K)

What is 19?

The elements with the maximum of electrons in their outer orbit

What are Elements in Group 18 or Noble Gases?

All elements in Group 1 (Column 1) have this many electrons in their outer orbit.

What is one?

An element becomes this when it “gives or takes” an electron, and as such, it now was a charge

What is an Ion?

The bond in which the atoms that are bonded SHARE electrons.

What is Covalent Bond?

The suffix ending added to the name of the new substance formed when a metal bonds with a non- metal

What is ide?

The type of bond that forms when a metal combines with a non-metal.

What is Ionic Bond?

A measure of how much an element pulls electrons away from other elements.

What is Electronegativity?