1. Metal atoms lose electrons. Nonmetal atoms can 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

2. Ionic Bonds—Electron Transferring
5. When forming a compound, the nonmetal atoms gain the electrons that was 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

3. Formation of Cations
7. Metals give away electrons to attain a noble gas configuration.
8. Lose electrons =positive ions (cations-meow, pawsitive!)
9.Draw a Neon atom

4. 10.
11.
11+
11+

5. Electron Dots For Cations
13. A charge of +1 means the loss of an electron while a charge of -3 means an atom gained 3 electrons and is now an ion. 14. Write the electron dot model for calcium.

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

7. Electron Dots For Cations
14. The first box was a calcium atom what is the second box?

8. Formation of Anions
15. Nonmetals gain electrons to look like a noble gas configuration. 16. They “get a minus” or gain electrons so they are negative ions. 17. Draw an Oxygen atom.

9. Electron Dots For Anions
18. The first box was an oxygen atom what is the second box?

11. 19. With metals the valence electrons are free to move around and are called a sea of electrons. This is called a metallic bond-since the aluminum nuclei share the electrons.
Lesson 3-4

12. 21. 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

13. 22. 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

14. 23. Which term refers to c? A. valence electron B. positive charge
C. chemical bond
D. negative charge
Chapter Review – MC1

15. 24. 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

16. 25. 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

17. 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

18. 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

19. 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

20. 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

21. 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

22. 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

23. 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