Ionization energy is the energy required to remove an electron from a gaseous atom or ion. First ionization energy will be the energy required to remove the outermost electron
Generally, the trend for ionization energy in the periodic table is that it increases as we go from left to right and increases also from bottom to top.
Reason is as number of atomic number or proton increases, the positive charge in the nucleus increases which attracts the electrons making it hard to remove electrons
Rank the elements Be, B, C, N, and O in order of increasing first ionization energy. Explain your reasoning.
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Our data indicates that this problem or a close variation was asked in Chemistry: An Atoms First Approach - Zumdahl Atoms 1st 2nd Edition. You can also practice Chemistry: An Atoms First Approach - Zumdahl Atoms 1st 2nd Edition practice problems.