Nickel

A metal; one of the elements; atomic weight, 58.8; equivalent, 29.4; valency, 2; specific gravity, 8.8. It is a conductor of electricity. Relative resistance, annealed (Silver = 1),   8.285   Specific Resistance, 12.47   microhms.   Resistance of a wire   (a) 1 foot long, weighing 1 grain,      15.206   ohms.   (b) 1 foot long, 1/1000 inch thick,     74.963    "   (c) 1 meter long, weighing 1 gram,       1.060    "   (d) 1 meter long, 1 millimeter thick,    .1587   "   Resistance of a 1-inch cube, 4.907   microhms.   Electro-chemical equivalent, (Hydrogen =.0105)  .3087   mgs. It is strongly paramagnetic, but loses this quality at 350º C. (662º F.) It is important as a constituent of German silver, an alloy much used for resistance coils.