Standard nuclear notation shows the chemical symbol, the mass number and the atomic number of the isotope. Example: the isotopes of carbon. The element is determined by the atomic number 6. Carbon-12 is the common isotope, with carbon-13 as another stable isotope which makes up about 1%.
More Easy Vegetables to Grow. Most root vegetables like carrots, turnips, and radishes are hardy and can be planted directly in the garden early in the spring and left until fall. The tops can be harvested too as these plants grow. Green beans and zucchini are also a cinch to grow and quite prolific producers.
Those last few weeks of winter can be miserable for gardeners wishing to see a glimpse of green. An early spring garden has been the savior of many a winter sufferer. Among vegetables suited for early planting, potatoes, onions and lettuce are some of the mainstays. Early in, early out is the growing technique for these garden staples. Lettuce can be grown year-round in areas with warm, but not hot, summers.