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5th grade-ch. 11 lesson 2 how do atoms combine

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Ch. 11 Lesson 2 How do atoms combine?

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Page 1: 5th Grade-Ch. 11 Lesson 2 How do atoms combine

Ch. 11Lesson 2

How do atoms combine?

Page 2: 5th Grade-Ch. 11 Lesson 2 How do atoms combine

atom•smallest particle of an element that still has the properties of that element

Page 3: 5th Grade-Ch. 11 Lesson 2 How do atoms combine

center of atom

no electrical charge

positive charge

negative charge

Page 4: 5th Grade-Ch. 11 Lesson 2 How do atoms combine

periodic table

organizes elements

arranged inrows by

# of protons

elements incolumns have

similar chemicalproperties

Page 5: 5th Grade-Ch. 11 Lesson 2 How do atoms combine

molecule• smallest particle of a substance that has properties of that substance

• share electrons

Page 6: 5th Grade-Ch. 11 Lesson 2 How do atoms combine

compound•made of combination of elements

•prop. of compounds - different from prop. of elements that make them up

Page 7: 5th Grade-Ch. 11 Lesson 2 How do atoms combine

+

+ =C6H12O6

carbon= C hydrogen= H

oxygen= O

Page 8: 5th Grade-Ch. 11 Lesson 2 How do atoms combine

• ex. C6H12O6 = glucose (sugar)

– 6 carbon atoms

– 12 hydrogen atoms

– 6 oxygen atoms

Page 9: 5th Grade-Ch. 11 Lesson 2 How do atoms combine

salts• compounds - particles held together by opposite charges

• made of 1 metal element & 1 nonmetal element

• form crystalsNaCl

sodium + chlorine

Page 10: 5th Grade-Ch. 11 Lesson 2 How do atoms combine

NaCl, Table Salt Crystals 79XNaCl, Table Salt Crystals 79X

Page 11: 5th Grade-Ch. 11 Lesson 2 How do atoms combine

ACTIVITY-MAKING MOLECULES

1.1. HH22O

2.CO2

3.C2HH44

4.CClCl44

5.C6HH1212O6

Blue- Nitrogen- NBlue- Nitrogen- N

Yellow- Hydrogen- Yellow- Hydrogen- HH

Black- Carbon- CBlack- Carbon- C

Green- Chlorine- ClGreen- Chlorine- Cl

Purple- Iodine- IPurple- Iodine- I

Fluorine- FFluorine- F

Red- Oxygen- ORed- Oxygen- O

Orange- Bromine- BrOrange- Bromine- Br

Page 12: 5th Grade-Ch. 11 Lesson 2 How do atoms combine

6. Make your own molecule, use at least 4 different types of elements.

Name your compound.

Page 13: 5th Grade-Ch. 11 Lesson 2 How do atoms combine

# of marbles Color of marbles

6 black

2 Light blue

15 Yellow

4 Red

4 Green

2 purple

2 orange


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