Do Now Directions: Complete the independent practice that we started in class on Tuesday.

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Presentation transcript:

Do Now Directions: Complete the independent practice that we started in class on Tuesday.

Today’s Schedule 1. Do-Now Atomic structure independent practice Atomic structure dry erase board practice Objectives: Today we will… 8.5(B) identify that protons determine an element's identity and valence electrons determine its chemical properties, including reactivity 8.5 (D) Recognize that chemical formulas are used to identify substances and determine the number of atoms of each element in chemical formulas containing subscripts. Dark Matter

Independent Practice

Chemistry Video Evidence of Chemical Reactions http://www.youtube.com/watch?v=h6LPAwAmnCQ http://youtu.be/0bAYqluRy2I animation of atom and moving electrons.

Atomic Structure Letter S represents the _____.

Atomic Structure Letter T represents the _____.

Atomic Structure Letter Q represents the _____.

Atomic Structure Letter R represents the _____.

Atomic Structure You know the identity of an element by counting the number of ____.

H Atomic Structure How many protons? Electrons? Neutrons? 1 1.008 Hydrogen

O Atomic Structure How many protons? Electrons? Neutrons? 8 15.999 Oxygen

Na Atomic Structure How many protons? Electrons? Neutrons? 11 22.999 Sodium

Atomic Structure What is the identity of this element?

Atomic Structure What is the identity of this element?

Atomic Structure How many neutrons in an atom of Fluorine?

Atomic Structure How many neutrons in an atom of Boron?

Atomic Structure How many neutrons in an atom of Magnesium?

Atomic Structure Which element has 33 protons?

Atomic Structure Which element has 79 protons?

Atomic Structure Which element has 82 protons?

Do Now: Copy the following notes into your student page. Use the pencils at your desk to shade the periods on the periodic table. Use the pencils at your desk to shade the groups on the periodic table. Periods Groups Horizontal Rows Vertical Columns Number of Energy Levels Number of Valence Electrons Chemical Reactivity Similar Chemical Properties Similar

Work with a partner and use your periodic table to complete the table.

Review: How to make a molecule… Formula Visual model H2O Subscript No Subscript, There is only 1 atom of oxygen in the molecule

Explore: Eggs-tracting the Elements Count the atoms in each molecule. Record on your answer page. Voice level 2 Time= 15 minutes. Label the periodic table with groups and periods 2 1 4 H2SO4

Elements/ Number of Atoms Explain: Chemical Formulas, page 27 Make a table like this in your INB. Compound Name Chemical Formula Elements/ Number of Atoms Total Number of Atoms Label the periodic table with groups and periods

The model above is best represented by: H2O 2OH HOOH H2O2

The above model shows: 10 atoms 2 molecules 2CH3Cl All of the above

Reflecting on STAAR What I know really well… 1. 2. 3. 4. What I still need help with… 1. 2. 3. 4.

Today’s Schedule Do-Now Egg-stracting the Elements Counting Atoms Formula Practice Dry Erase Boards Reflecting on STAAR Objectives: Today we will… 8.5 (D) Recognize that chemical formulas are used to identify substances and determine the number of atoms of each element in chemical formulas containing subscripts. Dark Matter

Today’s Schedule 1. Do-Now Atomic structure independent practice Atomic structure dry erase board practice Objectives: Today we will… 8.5(B) identify that protons determine an element's identity and valence electrons determine its chemical properties, including reactivity 8.5 (D) Recognize that chemical formulas are used to identify substances and determine the number of atoms of each element in chemical formulas containing subscripts. Dark Matter