1. Homework Due Wednesday,
Do Now Please:
PLANNER:
BRING HEADPHONES TOMORROW
Homework Due Wednesday,
Choose ONE: Cornell Notes for 11-3 or Question
(If you signed up for Honors for next year you should do both.)

2. Find Your Division…
are you a positive ion
are you a negative ion
are you an atom

3. Metal atoms lose electrons. Nonmetal atoms gain electrons.
An atom that has gained or lost an electron is an ion.
An ionic bond forms between positively and negatively charged ions.
Lesson 3 - VS

4. Ionic Bonds—Electron Transferring
5. When forming a compound, the nonmetal atoms gain the electrons… lost by the metal atoms.
6. The attraction between positively and negatively charged ions in an ionic compound is an ionic bond.
Lesson 3-2

5. Formation of Cations
Metals lose electrons to attain a noble gas configuration.
Lose electrons means they make positive ions (cations-meow, pawsitive!)
Na 1 valence electron
Na valence electrons (What noble gas is this like, _____)

6. Electron Dots For Cations
5. Metals will have few valence electrons 6. Metals will lose the valence electrons 7. Write the electron dot model for calcium.

7. Electron Dots For Cations
Did you draw this? Do metals lose or gain electrons? Ca

8. Electron Dots For Cations

9. Electron Dots For Cations
8. When metals lose the valence electrons they form positive ions. So what is the name of this?

10. Formation of Anions
Nonmetals gain electrons to attain a noble gas configuration.
Gain electrons means they make negative ions
Cl 7 valence electron
Cl valence electrons (What noble gas is this like, _____)

12. Metallic Bonds—Electron Pooling
A metallic bond is a bond formed when many metal atoms share their pooled valence electrons.
Valence electrons in metals are not bonded to one atom.
Instead, a “sea of electrons” surrounds the positive ions.
Lesson 3-4

13. 4. Valence electrons are free to move among all the aluminum (Al) ions.
Lesson 3-4

14. Elements can join together by sharing, transferring, or pooling electrons to make chemical compounds.
The BIG Idea

15. Which of these describes an atom that is no longer electrically neutral because it has lost or gained valence electrons ?
A. covalent compound
B. proton
C. ion
D. molecule
Lesson 3 – LR1

16. What is a bond formed when many metal atoms share their pooled valence electrons?
A. ionic bond
B. metallic bond
C. covalent compound
D. ionic compound
Lesson 3 – LR2

17. An ionic bond is the attraction between positively and negatively charged ions in which of these?
A. valence electrons
B. covalent compound
C. ionic compound
D. none of these
Lesson 3 – LR3

18. Which term refers to a force that holds two or more atoms together in a compound?
A. valence electron
B. positive charge
C. chemical bond
D. negative charge
Chapter Review – MC1

19. Which of these is the outermost electron of an atom that participates in chemical bonding?
A. valence electron
B. nucleus
C. negative electrons
D. proton
Chapter Review – MC2

20. Which of these is a group of atoms held together by covalent bonding that acts as an independent unit?
A. electron
B. proton
C. molecule
D. valence electrons
Chapter Review – MC3

21. Which of these describes a chemical bond formed when two atoms share one or more pairs of valence electrons?
A. polar molecule
B. covalent bond
C. chemical compound
D. none of these
Chapter Review – MC4

22. A metallic bond is a bond formed when many metal atoms share what?
A. their pooled valence electrons
B. ions
C. charged ions
D. molecules
Chapter Review – MC5

23. Which of these is a model that represents valence electrons in an atom as dots around the element’s chemical symbol?
A. periodic table
B. energy level
C. atomic number
D. electron dot diagram
Chapter Review – STP1

24. Which term describes atoms with unpaired dots in their electron dot diagrams?
A. reactive
B. chemically unstable
C. chemically stable
D. A and B
Chapter Review – STP2

25. Which of these describes a group of chemical symbols and numbers that represent the elements and the number of atoms of each element that make up a compound?
A. chemical bond
B. chemical formula
C. covalent bond
D. molecule
Chapter Review – STP3

26. Once an atom gains or loses electrons, it becomes which of these?
A. charged ion
B. covalent compound
C. molecule
D. proton
Chapter Review – STP4

27. Which of these refers to the attraction between positively and negatively charged ions in an ionic compound?
A. metallic bond
B. ionic bond
C. covalent compound
D. none of these
Chapter Review – STP5