What is the simplest negative particle in an a atom?

What Ball shaped structure usually found near the center of the cell? How is polarity related to surface tension? What 2 organisms help decay waste? What occurs as a substance melts? Describe what is the Sun's Radiative Zone? Does the element Br have the highest ionization energy? How long does ropivacaine epi nerve block last? What can be said about a redox reaction that has a positive pontential? How did scientists confirm the formula C60 for buckminsterfullerene? Why do gases diffuse rapidly while liquids diffuse slowly? The weights of all elements are always compared to oxygen. True False? What is the ion symbol for tin with 2 electrons lost? Why is there no time difference in the country Ireland? What effect might conjugation have on the offspring of the bacteria that underwent conjugation? What liquids explode when mixed? Is there evidence of extra tarestrial life? If 16 ounces of a chemical solution in 5 gallon of water equal 500 ppm how many ounces of chemical are needed to make one gallon? Which position should the ribs be kept in during inhalation and exhalation? How is 90 N latitude differ from 90 S latitude? If ambient room temperature is a constant 22 degrees celsius how much of a liter of water would evaporate in 12 hours and is the size of the exposed surface area of 1 liter relevant to evaporation?