Rank the following elements by atomic radius

Depending on the definition, the term may apply only to isolated atoms, or also to atoms in. Since the boundary is not a well-defined physical entity, there are various non-equivalent definitions of atomic radius. This means that #'Al'#'s atomic radius will be smaller than that of #'K'#, but bigger than that of #'C'# and #'O'#. The atomic radius of a chemical element is the distance from the center of the nucleus to the outermost shell of an electron.

Another reason for the increase in atomic radius is the electron shielding effect, which states that the electrons in the higher energy levels are being shielded by those closer to the nucleus, further reducing the nucleus' pull on them. This happens because electrons are now being added to higher energy levels, further away from the nucleus, which weakens the nucleus' pull. As you move down a colomn (a group) of the periodic table, atomic radius increases. This is where the other periodic trends comes into play.

Since #'C'# comes before #'O'# in the second period, #'O'# will have a smaller atomic radius than #'C'#.ДЄs mentioned before, #'Al'# and #'K'# don't share a period. As we move from left to right in a period, the atomic size and hence the ato. Expert.1 answer Top answer: All the elements given belong to 3rd period of the periodic table. To rank items as equivalent, overlap them.

Rank from largest to smallest atomic radius. Rank the following elements by increasing atomic radius: carbon, aluminum, oxygen, potassium. We know that atomic radius decreases from left to right within a period due to the increase in effective nuclear charge.ДЄs you move to the right within a period, the number of protons elements have increases simultaneously with the number of electrons however, electrons are being added to the same energy level across a period, which means that the increasing number of protons allows the nucleus to exert more pull on these electrons, which in turn makes the atomic radius smaller. Rank the following elements by atomic radius. This aspect will allow you to easily rank them with respect to increasing atomic radius, since both of the periodic trends in atomic size are on display here. The correct order with respect to increasing atomic radius isДЄn important thing to notice about these four elements is the fact that only two of them, #'C'# and #'O'#, are in the same row (the same period) of the periodic table the other two, #'Al'# and #'K'#, don't share a period neither with #'C'# and #O#, nor with each other, as #'Al'# is in the third period and #'K'# is in the fourth.