The low values (23 to 30 dynes/cm) result in easy wetting of most materials, which is helpful for. lubricity and other properties. Electrical Properties. The typical volume resistivity of Halocarbon oil is in the range. of 1013 to 1014 ohm-cm. The dielectric constant is quite low.
When metals form ions, they tend to do so by losing their electrons  to gain a positive charge. Losing negatively charged electrons  causes the metals to become more positiv â¦ e due to having more  protons.
Generally metals lose electrons to form cations with a positive charge equal to the group number. This ties into the octet rule because the metals 'revert' to the octet for the previous row in the periodic table. Calcium, Ca, in Group 2A has two valence electrons and forms a Ca2+ cation. Aluminum, Al, in group 3A forms the Al3+ cation. Potassium, K, in Group 1A has one valence electron and forms a K1+ cation. Ions from nonmetal elements. Generally nonmetal atoms gain electrons to form ions with a negative charge. These are called anions. This ties into the octet rule because the nonmetals gain electrons to fill to the octet for their row in the periodic table. The charge equals the group number minus 8.