The mass of an atom of another element is the ratio of its mass to the mass of a carbon atom. The mass number for neon is 20 but the atomic mass is 20.1797. The mass of the atoms increases. from left to right across the table.
Illinois growing zones range from zones 5-7. By looking at the map above and locating the approximate area in which you live, you will be able to find your Illinois hardiness planting zone. Simply compare the color-coded zones for your area with those of the legend on the right of the map.
The temperature of Rhode island has been relatively stable since the end of the last advance of the ice age. Now things are slowly changing... The new updated 2012 USDA Plant Maturity Zone map indicates that there are three Growing Zones in Rhode Island; 6a, 6b and 7a! The older 1993 Growing Zone Map from the USDA showed only two coller growing zones in Rhode Island; 5b and 6a.