Now use the diagram below to locate the external structures on your grasshopper. A grasshopperâs eardrum, or tympanum, is located below the second pair of wings on each side of the thorax. Locate the tympanum on your grasshopper using the picture below. The tympanum is used for hearing. tympanum Like all insects, grasshoppers have six legs.
Ionic bonding is the bonding that involves a transfer of electrons.
The type of bond an atom forms is relative to the behavior of their valence electrons and electronegativity values. The difference in electronegativity between atoms determines if they form a covalent bond or a ionic bond. In an ionic bond, one atom donates its valence electrons to another atom. The electron donor becomes positively charged, and the electron receiver becomes negatively charged. These charged particles become attracted to each other and bond to become stable and neutralize their charges. In a covalent bond, atoms share valence electrons. This allows the atoms to stabilize their inherent charges and become unreactive. Atoms that belong to the noble gas group of elements are generally unreactive and do not form chemical bonds because their valence electron shells are completely full and balanced.