3

LiLithium

6.9

SPI 0807.9.9Periodic Table

Bell Work

A) Number your paper from one to five, and open your book to pages 286-287. B) Write down the five chemical symbols shown below.C) Then locate each of these elements on the periodic table by using the element's atomic number. D) Next write the correct name for each element next to the chemical symbol. Note: Use pages 286-287 to help you

Atomic Number

(1) Na (atomic number is 11) (2) N (atomic number is 7)(3) Cl (atomic number is 17)(4) K (atomic number is 19)(5) Ca (atomic number is 20)

Nov 17, 2014

SPI 0807.9.9Periodic Table Science

Bell Work

(1) Na (atomic number is 11)

(2) N (atomic number is 7)

(3) Cl (atomic number is 17)

(4) K (atomic number is 19)

(5) Ca (atomic number is 20)

Answers

Sodium

Nitrogen

Chlorine

Potassium

Calcium

Silly Thought 13 I took a course in speed waiting……Now I can wait an hour in only ten minutes

Humor

Notes SPI 0807.9.3 Elements and Compounds

What Is An Element? a substance that CANNOT be broken down into a simpler substance by CHEMICAL means. In other words…you CANNOT change one element into a different element with a chemical reactionEach individual element is a unique particle called an atom So in other words… elements are the different types of atoms

Example:Lithium is an element.Here is one lithium atom

3

LiLithium

6.9

More About Elements: Elements’ chemical symbols always start with one capital letterCan be followed by one or more lower case letters

Examples of Elements: H = the element hydrogenrepresents one hydrogen atomNa = the element sodiumrepresents one sodium atomUub=the element ununbiumrepresents one ununbium atom

Notes SPI 0807.9.3 Elements and Compounds

What Is a Compound? …is a substance made up of atoms of two or more different elements that are chemically bonded via a chemical reaction to form a new substance.

COMPOUND EXAMPLES:NaCl = (Table Salt)

CO2 = (Carbon dioxide)

C6H12O6 = (Glucose)

SODIUM AND CHLORINE

CARBON AND OXYGEN

Notes

CARBON, HYDROGEN, & OXYGEN

SPI 0807.9.3 Elements and Compounds

The properties of the new substance are different from the substances that you started with.

More About Compounds: Formulas for compounds will always contain more than one capital letter.This is how you can tell the difference between an element and a compound… count the number of capital letters!

Examples: H2O This is the compound called water

C12H22O11This the compound called table sugar

CH3COOH This is the acidic compound called vinegar

Notes

…is a compound for it has more than 1 capital letter

…is a compound for it has more than 1 capital letter

…is a compound for it has more than 1 capital letter

SPI 0807.9.3 Elements and Compounds

.

Stand and Stretch! You have been sitting for a mighty long time. Let's take a 1 minute break to stand and stretch.

BreakTime!

SPI 0807.9.9 Periodic Table

BreakTime!

Is this an element or a compound?Write a capital E if you think it is an elementWrite a capital C if you think it is a compound

Cs(Cesium)

Why?...is a pure substance, consists of only one type of atomHow to tell?...It only has one capital letter!

Review Activity

Element

Is this an element or a compound?Write a capital E if you think it is an elementWrite a capital C if you think it is a compound

NaCl(Sodium Chloride)

Why?... has two atoms chemically bonded together How to tell?...It has more than one capital letter!

Review Activity

Compound

Is this an element or a compound?Write a capital E if you think it is an elementWrite a capital C if you think it is a compound

Fe(Iron)

Why?...is a pure substance, consists of only one type of atomHow to tell?...It only has one capital letter!

Review Activity

Element

Is this an element or a compound?Write a capital E if you think it is an elementWrite a capital C if you think it is a compound

MgCl2

(Magnesium Chloride)Why?... has two atoms chemically bonded together

How to tell?...It has more than one capital letter!

Review Activity

Compound