Unit 5: Chapter 6.1 Guided Notes
ECSC
1. Atoms are unlikely to react when: ________________________________________________________
___________________________________________________________________________________________.
2. Noble gases are the most _____________ elements.
a. The highest occupied energy level is _________________________.
b. Elements tend to _______________ to achieve electron ________________________ similar to
those of noble gases.
3. Chemical properties of an element ___________________ on the number of _____________ electrons.
4. Electron dot diagram - [_________________________] is alternative to standard electron shell diagram
a. Dot diagram _________________________ valence electrons (inner shells hidden)
5. In the Lewis Dot Diagram the Element symbol represents:
a.
b.
6. Dots represent: ______________________________ (outer shell – Highest occupied energy level)
7. Fill in Lewis Dot Diagrams
8. When an atom gains or loses an electron(s)  _____________________________________________.
9. ________ = atom (or group of atoms) with ______________ (+) or ____________ (-) net electric
charge.
10. ____________________ = Ion with a negative (-) charge
a. [Memory aid: anion = A Negative ION]
11. Example: ________________
a. atomic # ______________
b. _________________ Family/Group 7A
c. 7 ______________________________
d. Neutral (but not ________________________) - 17 protons and 17 electrons
e. To become stable – _____________________ 1 electron in outer e- shell
f. Now have _______________ more e- than proton = _______________ net charge
g. ______________________ is written Cl- or Cl112. Naming _____________________:
a. Part of element name + _________________ “ide”
b. Example: Chlorine ion becomes _________________________________________
i. Cl- is called a _________________________________ ion
13. ________________________ = Ion with a positive charge
14. Example: ____________________
a. atomic # ____________
b. ______________________________ Family/Group 1A
c. ________ Valence Electron
d. ____________________ (but not stable) -11 protons and 11 electrons
e. To become stable – _______________ the 1 electron in outer e- shell
f. Now has 1 more __________________ than electron = ____________ net charge
g. Symbol is written Na+ or Na1+
15. Naming _______________________:
a. Use the __________________ element name
b. Na+ is called a ______________________ ion
16. Elements achieve __________________ electron configurations by _________________________ or
______________________ electrons between atoms
17. Transferring __________________________ a. Those with __________________ valence electrons “_________________________” them
i. These elements __________________ valence electrons
OR
b. Those with ___________________ valence electrons “_______________________” them
i. These elements _______________________ electrons
18. Sodium reacts with chlorine  electron transferred from sodium to chlorine
a. Each atom ends up more stable
19. __________________________ = force that holds atoms or ions together as a unit.
20. _____________________ attract
a. Particle(s) with ____________________ charge attracts particle(s) with
_____________________ charge.
21. ________________________ bond
a. Force that holds ________________ and _________________ together and which involves the
_________________________________ of electrons.
b. Bond occurs between a ________________ and a ________________________.
22. Ionic ________________________
a. What is the chemical formula for magnesium chloride?
23. Mg atom ___________________________ reach a ______________________________ electron
configuration by giving up just 1 valence electron or reacting with just 1 chlorine atom.
a. Mg _______________________ 2 electrons, one to each of the 2 ___________________ atoms.
b. After transfer 
i. Charge on the __________________________ ion is 2+
ii. Charge on the ___________________ chloride ions is 1-
24. Formula for magnesium chloride is ___________________________________.
25. The properties of sodium chloride are ________________________ of ionic compounds.
a. ___________________ melting point
i. sodium chloride melts ~800°C
b. When solid - __________________________________ of electric current
c. When _____________________________ (melted) - good conductor of electric current.
d. ________________________________ - crystals shatter when struck with a mallet