1 When the third energy level has 8 electrons, the next 2 electrons go into the fourth energy level. 2  The electrons in the energy level farthest from the nucleus are called valence electrons. 3  Atoms in the same column (group) in the periodic table have the same number of valence electrons.
Axona is part of the Medical Foods class and treats Alzheimer's Disease. Medical foods are used to treat various conditions including Alzheimer's disease, osteoarthritis, diabetic neuropathy, and depression. They work by supplying nutrition not available in a normal diet for the management of certain diseases.
Noun. 1. axon-long nerve fiber that conducts away from the cell body of the neuron. axone. nerve fiber, nerve fibre-a threadlike extension of a nerve cell.nerve cell, neuron-a cell that is specialized to conduct nerve impulses.nerve end, nerve ending-the terminal structure of an axon that does not end at a synapse.. axon-long nerve fiber that conducts away from the cell body of the neuron. axone. nerve fiber, nerve fibre-a threadlike extension of a nerve cell. nerve cell, neuron-a cell that is specialized to conduct nerve impulses. nerve end, nerve ending-the terminal structure of an axon that does not end at a synapse.