Chemistry

Problem

The atomic radius (in pm) of consecutive Period 2 elements is plotted against atomic number as follows:

Z=3\;(167),\;4\;(112),\;5\;(87),\;6\;(67),\;7\;(56),\;8\;(48),\;9\;(42),\;10\;(?).

Based on the trend in the plotted data, which value is most reasonable for the atomic radius of the element with

Z=10

? a) 48 pm b) 38 pm c) 70 pm d) 45 pm