Elements & Compounds Introduction

Elements & Compounds Introduction

Mixtures

In 5th grade you learned that mixtures consist of two or more different elements and/or compounds PHYSICALLY intermingled, and CAN be SEPERATED into its components (parts) by physical means, and often retains many of the properties of its original components.

Elements Vs. Compounds

• ELEMENTS - consists of only one kind of atom, cannot be broken down into a simpler type of matter by either physical or chemical means, and can exist as either atoms (example: 1 atom of oxygen) or molecules (more than one of the same atom example O2 (2 atoms of oxygen)).

• COMPOUNDS - consist of atoms of two or more different elements bound together, that can be broken down into a simpler type of matter (elements) by chemical means (but not by physical means), has properties that are different from its component elements, and always contains the same ratio of its component atoms.

Multiple Select

What is the difference between elements & compounds?

• Elements contain 2 or more different elements, compounds contain only one type of element.

• Compounds contain 2 or more different elements, elements contain only one type of element.

Vocabulary Activity Elements

Use the NEW periodic table of elements in your journal to find the chemical symbol and identify the element name during the activity.

Multiple Choice

Co

• Calcium

• Cobalt

• Copper

• Carbon

Multiple Choice

Cu

• Calcium

• Cobalt

• Copper

• Carbon

Multiple Choice

Ca

• Calcium

• Cobalt

• Copper

• Carbon

Multiple Choice

N

• Nitrogen

• Sodium

• Nickel

• Neon

Multiple Choice

Na

• Nitrogen

• Sodium

• Nickel

• Neon

Multiple Choice

Ni

• Nitrogen

• Sodium

• Nickel

• Neon

Vocabulary Activity Compounds

Use the NEW periodic table of elements in your journal to find the chemical symbols shown in the compound provided and identify the element names during the activity.

Multiple Choice

What elements are present in NH?

• Nitrogen and Hydrogen

• Neon and Hydrogen

• Nickel and Hydrogen

• Sodium and Hydrogen

Multiple Choice

What elements are present in FeCo?

• Iron and Copper

• Iron and Cobalt

• Iron and Carbon

• Iron and Calcium

Multiple Choice

What elements are present in BeSi?

• Boron and Scandium

• Boron and Sulfur

• Boron and Silicon

• Boron and Tin

ALL DONE

Go to STEMscopes and complete the assigned Reading Comprehension and questions, Few Elements & Many Compounds.