Ionization Energy Trends

How does the size of an atom relate to its ionization energy?

• Smaller atoms have lower ionization energy.

• Smaller atoms have higher ionization energy.

• Larger atoms have higher ionization energy.

• The size of an atom does not affect its ionization energy.

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Describe the relationship between ionization energy and atomic number.

• Ionization energy is inversely proportional to atomic number.

• Ionization energy is not affected by atomic number.

• Ionization energy decreases as atomic number increases.

• Ionization energy increases as atomic number increases.

What is the general trend in ionization energy as you move from left to right across a period?

• Decreases

• Fluctuates

• Increases

• Remains constant

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Why does helium have a higher ionization energy than hydrogen?

• Helium has a higher electronegativity than hydrogen, resulting in a higher ionization energy.

• Helium has a full valence shell with 2 electrons, making it more stable and harder to remove an electron compared to hydrogen.

• Helium has a lower atomic number than hydrogen, so it naturally has a higher ionization energy.

• Helium has a larger atomic radius compared to hydrogen, leading to a higher ionization energy.

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Compare the ionization energy of elements in the same period but different groups.

• Ionization energy of elements in the same period but different groups generally increases from left to right, but elements in higher groups have lower ionization energy compared to elements in lower groups within the same period.

• Ionization energy of elements in the same period but different groups remains constant

• Elements in higher groups have higher ionization energy compared to elements in lower groups within the same period

• Ionization energy decreases from left to right in the same period for elements in different groups

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How does the number of protons in an atom affect its ionization energy?

• Atoms with more protons have higher ionization energy.

• Atoms with more protons have lower ionization energy.

• The number of protons does not affect the ionization energy.

• Atoms with fewer protons have higher ionization energy.

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What role does atomic radius play in determining ionization energy?

• Smaller atomic radius leads to higher ionization energy.

• Larger atomic radius leads to higher ionization energy.

• Atomic radius has no effect on ionization energy.

• Smaller atomic radius leads to lower ionization energy.

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What is ionization energy?

• Ionization energy is the energy required to add an electron to a neutral atom.

• Ionization energy is the energy required to change the state of matter of an atom.

• Ionization energy is the energy required to remove an electron from a neutral atom in the gaseous phase.

• Ionization energy is the energy required to split an atom into smaller particles.

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Which group in the periodic table has the highest ionization energy?

• Halogens (Group 17)

• Noble Gases (Group 18)

• Transition Metals (Group 3-12)

• Alkali Metals (Group 1)

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Compare the ionization energy of alkali metals and noble gases.

• Noble gases have lower ionization energy compared to alkali metals.

• Alkali metals and noble gases have similar ionization energies.

• The ionization energy of alkali metals is generally higher than that of noble gases.

• The ionization energy of alkali metals is generally lower than that of noble gases.

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