Midwifery (Biochemistry) Quiz

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1. An atom that does not have a full outermost (valency) shell it is not stable and will react with other atoms to full it's outer shell to become stable. This is called

  • Chemical Bonding
  • Ionic Bonding
  • Hydrogen Bonding
  • UniBond
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2. A _______ ____ is a weak type of chemical bond that forms between hydrogen atoms in one molecule and some atoms in other molecules. Water is a classic example which has two hydrogen and one oxygen atom.

  • Covalent Bond
  • Hydrogen
  • Ionic Bond
  • UniBond

3. A _________ ____ forms when atoms share electrons to attain a full outermost shell and become stable

  • Ionic Bond
  • Covalent Bond
  • UniBond
  • Hydrogen Bond

4. Atoms that have gained or lost electrons carry an electrical charge called ions. E.g. Sodium loses an electron becoming a sodium ion (Na+). Chlorine gains an electron becoming Chloride Ion Cl-. ions of opposite charge attract each other. When ions are for

  • Ionic Bonding
  • Chemical Bonding
  • Hydrogen Bonding
  • UniBonding

5. Which of these is the smallest atom having only 1 proton and 1 electron

  • Nitrogen (N)
  • Hydrogen (H)
  • Oxygen (O)
  • Helium (He)
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