negatively charged center
71Technetium — molybdenum ← technetium → ruthenium Mn ↑ Tc ↓ Re …
72Chemical reaction — Chemical reactions redirects here. For the 2007 television episode, see Chemical Reactions (Men in Trees). A thermite reaction using iron(III) oxide. The sparks …
73Molecule — 3D (left and center) and 2D (right) representations of the terpenoid molecule atisane A molecule (pronounced  …
74Muon — The Moon s cosmic ray shadow, as seen in secondary muons generated by cosmic rays in the atmosphere, and detected 700 meters below ground, at the Soudan II detector Composition Elementary particle Statistics …
75Nitrogen — carbon ← nitrogen → oxygen ↑ N ↓ P …
76Nuclear physics — For other uses, see Nuclear Physics (disambiguation). Nuclear physics Radioactive decay Nuclear fission Nuclear fusion …
77Voltage — Potential difference redirects here. For other uses, see Potential. Working on high voltage power lines, Pearl Harbor …
78Enriched uranium — Proportions of uranium 238 (blue) and uranium 235 (red) found naturally versus enriched grades Enriched uranium is a kind of uranium in which the percent composition of uranium 235 has been increased through the process of isotope separation.… …
79Ethanol precipitation — is a method used to purify and/or concentrate RNA, DNA and polysaccharides such as pectin and xyloglucan from aqueous solutions. DNA Precipitation Theory DNA is polar due to highly charged phosphate backbone. This polarity based on the principle… …
80Universal Century technology — O Niell Island 3 type space colony cylinders Universal Century technology are technologies from the Universal Century timeline of the Gundam anime metaseries. Although they are only fictional technologies, they form the basics of the Real Robot… …
