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Bell Work. GET OUT A SHEET OF PAPER – WRITE YOUR NAME, PERIOD, AND DATE ON THE TOP. TITLE THIS PAGE : PERIODIC TABLE GET OUT YOUR PERIODIC TABLE FIND OXYGEN ON YOUR TABLE WRITE DOWN THE FOLLOWING: Is it a gas, liquid, or solid at room temperature?

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bell work
Bell Work
  • GET OUT A SHEET OF PAPER – WRITE YOUR NAME, PERIOD, AND DATE ON THE TOP.
  • TITLE THIS PAGE: PERIODIC TABLE
  • GET OUT YOUR PERIODIC TABLE
  • FIND OXYGEN ON YOUR TABLE
  • WRITE DOWN THE FOLLOWING:
    • Is it a gas, liquid, or solid at room temperature?
    • How many protons, neutrons, and electrons does it have?
  • FOR ONE OXYGEN ATOM CREATE:
    • A Bohr Diagram
    • A Lewis Structure
what is happening today
What is Happening today?
  • Objective:
    • Using a periodic table of your own creation you will be able to write two paragraphs describing at least three patterns in atomic structure across the periodic table of elements.
  • Homework:
    • Complete the periodic table crossword puzzle using your notes, and a periodic table of elements.
slide3

Al

Si

Ne

Li

He

P

H

Periodic Table Basics

Be

O

Mg

F

Na

N

B

C

Cl

T. Trimpe http://sciencespot.net

slide4

Helium

Neon

Argon

Hydrogen

Lithium

Sodium

He

Ne

Ar

H

Li

Na

  • Which elements had complete outer shells? Give the name and symbol for each.
  • ________________ _____ ________________ _____ ________________ _____
  • What do you notice about the location of these elements?
  • 2. Which elements had only one valence electron? Give the name and symbol for each.
  • ________________ _____ ________________ _____ ________________ _____
  • What do you notice about the location of these elements?

The elements are in the same column at the far right side of the table.

The elements are in the same column at the far left side of the table.

slide5

3. What do you notice about the number of valence electrons as you move from left to right across a row or period in the periodic table?

Na Mg  Al  Si  P  S  Cl  Ar

4. What do you notice about the number of energy levels or shells as you move down a group or column in the periodic table?

H

Li

Na

Na – 1 Mg – 2 Al – 3 Si – 4

The number of valence electrons increases by one as you move across each column.

H – 1

Li – 2

Na - 3

The number of energy levels increases by one as you move down each row.

slide6

Alkali Metals

Noble Gases

AlkalineEarthMetals

BoronFamily

CarbonFamily

NitrogenFamily

OxygenFamily

Halides

5. Write the name of each family at the top of the columns on your periodic table using the following information.

Alkali Metals - 1 valence electron Nitrogen Family - 5 valence electrons

Alkaline Earth Metals - 2 valence electrons Oxygen Family - 6 valence electrons

Boron Family - 3 valence electrons Halides - 7 valence electrons

Carbon Family - 4 valence electrons Noble Gases - Complete outermost shell

6. What do you notice about the location of the elements in each family?

The elements in each family are in the same columns.

slide7

Alkali Metals

Noble Gases

AlkalineEarthMetals

BoronFamily

CarbonFamily

NitrogenFamily

OxygenFamily

Halides

?

7. In what family would you classify hydrogen? Explain.

Alkali Metals – Hydrogen has only one valence electron so it could be classified with the alkali metals.

OR

Halides – Hydrogen only needs one more valence electron to fill its outer shell so it could be classified with the halides.

slide8

Alkali Metals

Noble Gases

AlkalineEarthMetals

BoronFamily

CarbonFamily

NitrogenFamily

OxygenFamily

Halides

8. In what family would each of these elements be classified?

Radium - ________________________ Tin - ________________________

Iodine - ________________________ Cesium - ________________________

Alkaline Earth Metals

Carbon Family

Halide

Alkali Metals

slide9

10. Predict the number of valence electrons for each element based on its location in the Periodic Table of Elements. You will need to use the table in your textbook.

Barium = _____ Lead = _____ Bismuth = _____ Potassium = _____

2

4

5

1

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closure
  • On the same page you did your Bell Work look at the periodic table you made and your analysis of each element. How do the Bohr electron diagrams, atomic numbers, Lewis dot structures, etc. change as you move from left to right across the table or up and down in the same column?
    • Write about at least three patterns that you see. Include specific examples to illustrate the patterns you see. This should be at least two paragraphs.
  • Turn this page into your teacher.
  • Don’t forget to complete the crossword puzzle for homework tonight!