Identify an element with higher ionization energy
Correct answer: D. Less electropositive
- A. Greater metallic character
- B. Larger atomic size
- C. Strong reducing agent
- D. Less electropositive
Explanation
The factors upon which the ionization energy of an atom mainly depends are magnitude of nuclear charge, size of the atom, and the "shielding effect".Ionization energy is inversely related to metallic character.Ionization energy is inversely related to atomic size.Ionization energy is inversely related to strength of reducing agent.Ionization energy is inversely related to electropositive character and directly to electronegative character.The tendency of an element to lose the electrons to form the positive ions is called the electropositive character. It is also called the metal character. The elements which have very low ionization energies have a higher tendency to lose electrons and therefore they are electropositive or metallic in their behaviour.
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About Periodic Properties and Trends
Periodic properties arise from electron configuration and effective nuclear charge, producing trends in atomic and ionic radius, ionization energy, electron affinity, electronegativity, metallic character and reactivity. Comparisons run across periods and down groups, with attention to common exceptions. The topic also relates these trends to the behavior of s-block and p-block elements.
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