click below
click below
Normal Size Small Size show me how
Bio Test
Bonds
| Question | Answer |
|---|---|
| What type of bonding patterns does a drop of pure water have? Describe Polar covalent | The Oxygen has 6 electrons in its outer ring and it wants 2 to be happy. Both Hydrogen have 1 electron in their outer ring and they want to gain 1 to be happy. O=slightly negative and H=slightly positive because the O is stronger so electrons are closer |
| What type of bonding patterns does a drop of pure water have? Describe Hydrogen bond | Because the Oxygen part of the H2O molecule is slightly negative and the H part of the molecule is slightly positive, there is a magnetic attraction between the negative and positive sides of 2 different H2O molecules. |
| What type of bonding pattern does NaCl have? Describe it and how it forms. | Na=1 electron in its outer shell, it would want to get rid of its electron=octet Cl=7 electrons in its outer shell, needs 1 more electron to reach an octet. These would form an Ionic bond-it is easier for Na to get rid of one electron rather than gain 7 |
| What is a non-polar covalent bond How is it formed | A non-polar covalent bond is a bond between 2 or more atoms where electrons are shared equally. |
| What is a Hydrogen Bond How is it formed | Weak connection between a hydrogen atom and an atom like oxygen or nitrogen. Happens when hydrogen is already part of 1 molecule and gets attracted to a close molecule. Helps hold water molecules and DNA together-Not a strong bond but important in nature |
| Describe an atom with 11 subatomic particles each | 11 protons and 11 neurons inside the nucleus, and 2 electrons in the inner ring, 8 on the middle outer ring, and 1 on the very outer ring, |