# Question #a157c

$\text{Atomic size decreases across a Period............}$
And you have boron, $Z = 5$, versus oxygen, $Z = 8$. The atomic radius of boron is $85 \times {10}^{-} 12 \cdot m$; that of oxygen is $60 \times {10}^{-} 12 \cdot m$. Are these data consistent with the above spray?