Iodine is an essential trace element in our diet; it is needed to produce thyroid hormone. Insufficient iodine in the diet can lead to the development of a goiter, an enlargement of the thyroid gland (Figure 2). Figure 2. (a) Insufficient iodine in the diet can cause an enlargement of ...
The second atomic radius periodic trend is thatatomic radii increase as you move downwards in a group in the periodic table.For each group you move down, the atom gets an additional electron shell.Each new shell is further away from the nucleus of the atom, which increases the atomic radius...
J.W. Döbereinerin 1817 showed that the combining weight, meaningatomic weight, ofstrontiumlies midway between those ofcalciumandbarium, and some years later he showed that other such “triads” exist (chlorine,bromine, andiodine[halogens] andlithium,sodium, andpotassium[alkali metals]). J.-...
125 7.139 −89.028 126 18.952 −90.070 128 31.687 −88.994 130 33.799 −87.353 iodine 53 I 127 100 −88.987 xenon 54 Xe 124 0.08913 −87.658 126 0.08880 −89.173 128 1.91732 −89.861 129 26.43964 −89.697 130 4.08271 −89.881 131 21.17961 −88.416 132 26.89157...
125 7.139 −89.028 126 18.952 −90.070 128 31.687 −88.994 130 33.799 −87.353 iodine 53 I 127 100 −88.987 xenon 54 Xe 124 0.08913 −87.658 126 0.08880 −89.173 128 1.91732 −89.861 129 26.43964 −89.697 130 4.08271 −89.881 131 21.17961 −88.416 132 26.89157...