what are the trends in atomic size of elements within groups?
Periodic trends are a classification of elements , periodicity of elements , periodic , ionization energy periodic table
The following periodic properties show trends in the periodic table based on Atomic size:
Distance from the center of an atom to its outermost shell.
In the periodic table, on moving from left to right in a row, the atomic size of elements decreases because the number of electron shells in each atom remains the same in a row whereas the increase in atomic number across the row causes an increase in the attractive forces between the valence electrons and the positive protons in nucleus. This force of attraction pulls the valence shell closer to the nucleus in atoms having greater atomic number.
The atomic size of elements increases as we move down a column in the periodic table.
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