Question
What of these things are NOT listed in the periodic table? A) Element name or symbol B) atomic weight C) atomic orbital radius D) atomic number
Answer
3.9
(245 Votes)
Brooke
Veteran · Tutor for 12 years
Answer
C
Explanation
The periodic table is a scientific chart that organizes all known chemical elements in accordance with their characteristics and standards. It usually includes the following information: Every element on the periodic table is presented by its chemical symbol or name, atomic number, and atomic weight or atomic mass. The atomic number indicates the number of protons in an atom's nucleus, determining the element's placement in the periodic table. Atomic weight, on the other hand, represents the weighted average mass of an atom's naturally occurring isotopes. These kinds of data are critical for performing various chemical computations, discerning an element's reactivity, and predicting the molecule's structure and stability in principle. Atomic orbital radius is not included in the general form of the periodic table commonly used because atomic orbitals are complex shapes that don't have a perfectly defined 'radius'. Dividing the realm of an atom simply into different energy levels of probability remains a kind of spectrum rather than discrete concentric ‘orbits’ with clear distances from the nucleus. Therefore, atomic orbital radius isn't an exact or regular matter that's included in the periodic table.