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2016 PT SETUP and LEWIS DOT.notebook 1 February 10, 2016 PERIODIC TABLE AND LEWIS DOT DIAGRAMS LEARNING GOALS: To be able to predict properties of elements based on their location on the periodic table To be able to identify elements based on location criteria (periods, groups) To be able to relate the periodic table to the valence electrons of an atom To be able to draw Lewis Dot Diagrams based on an elements location on the Periodic Table PERIODS GROUPS 1 2 3 4 .............. 10 11 12 13 14 ...... 17 18 METALS vs NONMETALS vs METALLOIDS GROUP 1: ALKALI METALS H? families

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Page 1: 2016 PT SETUP and LEWIS DOT.notebookchemistryatnd.weebly.com/uploads/.../periodic_table... · d. is a period 5 alkali metal? e. is a period 3 halogen? f. fills the 4th energy level

2016 PT SETUP and LEWIS DOT.notebook

1

February 10, 2016

PERIODIC TABLE AND LEWIS DOT DIAGRAMS

LEARNING GOALS:To be able to predict properties of elements based on their location on the periodic table

To be able to identify elements based on location criteria (periods, groups)

To be able to relate the periodic table to the valence electrons of an atom

To be able to draw Lewis Dot Diagrams based on an elements location onthe Periodic Table

PERIODS

GROUPS

1 2 3 4 .............. 10 1112 13 14 ...... 17 18METALS vs NONMETALS vs METALLOIDS

GROUP 1:ALKALI METALS

H?

families

Page 2: 2016 PT SETUP and LEWIS DOT.notebookchemistryatnd.weebly.com/uploads/.../periodic_table... · d. is a period 5 alkali metal? e. is a period 3 halogen? f. fills the 4th energy level

2016 PT SETUP and LEWIS DOT.notebook

2

February 10, 2016

GROUP 2:ALKALINE EARTH METALS

GROUP 17 (7A):HALOGENS

GROUP 18 (8A):NOBLE GASES!!

VALENCE ELECTRONS:THE ELECTRONS IN THE OUTERMOST RING (SHELL)

* THE MOST IMPORTANT ELECTRONS

*THE ELECTRONS INVOLVED IN BONDING

*DETERMINES WHAT KIND OF ION WILL BE FORMED

GROUP 1:ALKALI METALS

PERIODS

GROUPS

VALENCE SHELL

NUMBER OF VALENCE ELECTRONS

Page 3: 2016 PT SETUP and LEWIS DOT.notebookchemistryatnd.weebly.com/uploads/.../periodic_table... · d. is a period 5 alkali metal? e. is a period 3 halogen? f. fills the 4th energy level

2016 PT SETUP and LEWIS DOT.notebook

3

February 10, 2016

SHOWING VALENCE ELECTRONS:LEWIS DOT SYMBOLS

B.R. diagram for phosphorus, 31P

Lewis Dot Symbol for phosphorus, 31P

P

P

Li Be B C N O F Ne

Na

LEWIS DOT SYMBOLS

PREDICTING IONS

Ar

F

S

P

nonmetals: 1, 2 or 3 electrons short..

PREDICTION IONS

Ar

Na

Sr

In

metals: 1, 2 or 3 electrons past noble gases

Name that element:

Which element:

a. puts 5 valence electrons into the       3rd energy level (ring)?

b. puts 2 valence electrons into the 6th energy level (ring)?c. puts 3 valence electrons into the 4th energy level (ring)?

d.  is a period 5 alkali metal?e.  is a period 3 halogen?

f.  fills the 4th energy level (ring)?

g.  half­fills the 2nd energy level (ring)?h.  is found in period 4 group VA ?i. is found in period 2, group VIA ?

j.  is a metalloid in period 3?

NAME SYMBOL SummaryValence Electrons are the electrons in the OUTERMOST SHELL of an atom(only important ones)*** THERE CAN NEVER BE MORE THAN 8 VALENCE ELECTRONS***

The GROUP NUMBER (roman numeral or A group)   = # of VALENCE ELECTRONS

The PERIOD NUMBER (rows)   =   VALENCE SHELL BEING FILLED

TO DRAW LEWIS DOT DIAGRAMS:

Place dots around the element symbol in a clockwise or counterclockwise fashion, 1 dot at a time, until it equals the number of valence electrons(exception Helium  .....only has two dots and they go together.)