2. Ions/Dot Structure BondingDefinitio ns ProblemsLab Question 200 400 600 800 1000 Bonus Question: 5000 pts

3.  Question:  What charge will a Mg ion have?  Answer:  +2

4.  Question:  What does a Positive charge means Answer:  It will lose 1 electron Back

5.  Question:  Roman Numerals on the periodic table represent the number of____________ on each element in that column on the table.  Answer  Valence Electron Back

6.  Question:  What is the octet rule?  Answer  an atom is stable when it has 8 valence electrons in its outermost energy level. Back

7.  Question:  Which element is stable without 8 valence electrons?  Answer:  Helium, He Back

8.  Question:  What are the 3 kinds of chemical bonding within a molecule?  Answer:  Ionic, Covalent, and Metallic Back

9.  Question:  The Electronegativity has to be ____ to be an ionic bond.  Answer: over 1.7 Back

10.  Question:  Metallic Bonds are __________ conductors of electricity  Answer  Good Back

11.  Question:  What state of matter(at room temperature) are Metallic Bonds?  Answer:  solid Back

12.  Question:  What are the 2 different types of covalent bonds?  Answer  Polar and Non-Polar. Back

13.  Question:  What is the definition of Chemical Bond?  Answer  It is a force that holds atoms together Back

14.  Question:  What tells us the number of protons and electrons of a element.  Answer:  Atomic Number Back

15.  Question:  What is the definition of polar and non-polar  Answer  Polar- Electrons are NOT shared equally.  Non-Polar- They share electrons equally. Back

16.  Question:  What are Valence electrons?  Answer  electrons in the outermost energy level Back

17.  Question:  What does hydrophobic and hydrophilic mean?  Answer  Hydrophobic – does NOT like water.  Hydrophilic – likes water. Back

18.  Question:  CaCl 2  Answer  Ionic bond Identify the following as containing non-polar covalent, polar covalent, or ionic bonds. Back

19.  Question:  CO 2  Answer  Polar Covalent Identify the following as containing non-polar covalent, polar covalent, or ionic bonds. Back

20.  Question:  Which atom will gain one electron in order to form a bond.  Answer DD ABCDE Back

21.  Question:  Which of the following Bohr models represents an atom that will not bond because it is already stable:  Answer: EE ABCDE Back

22.  Question:  HCl  Answer  Polar Covalant Identify the following as containing non-polar covalent, polar covalent, or ionic bonds. Back

23.  Question:  Oil and water do not mix because oil is ________________________ and ________________________ while water is polar.  Answer  Non Polar, hydrophobic Back

24.  Question:  Water is a polar molecule. Since “like dissolves like”, other polar molecules will dissolve in water. These other polar molecules must be _________________ (like or attracted to water).  Answer:  hydrophilic Back

25.  Question:  Oil is a non-polar molecule. Since “like dissolves like”, other non-polar molecules will dissolve in oil. These other non-polar molecules must be __________________(dislike or repel water).  Answer  Hydrophobic Back

26.  Question:  Food coloring did mix with water so food coloring must be ________________________ and ______________________.  Answer  Polar, Hydrophilic Back

27.  Question:  The bond between the H atom and the O atom within the water molecule is a _____________bond.  Answer  Polar Covalent Back

28.  Question:  What kind of bond does the dotted line represent?  Answer  Hydrogen bond ------------- Back