Exploring Periodic Trends in Chemistry

What does periodicity mean in the context of the periodic table?

• A one-time event

• A random pattern

• A repeated pattern

• A unique behavior

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What is the definition of atomic radius?

• The distance from the nucleus to the outermost electron

• The distance between the nucleus and the first energy level

• Half the distance between the nuclei of two bonded atoms

• The distance between two bonded atoms

How does atomic size change as you move down a group in the periodic table?

• It fluctuates

• It increases

• It remains the same

• It decreases

Why does atomic size decrease across a period?

• Because the number of neutrons increases

• Because the number of protons increases, pulling electrons closer

• Because the number of protons decreases

• Because the number of energy levels decreases

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What is ionization energy?

• The energy released when an electron is removed

• The energy required to remove an electron

• The energy released when an electron is added

• The energy required to add an electron

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How does ionization energy change as you move down a group?

• It increases

• It remains the same

• It decreases

• It fluctuates

What is electronegativity?

• The ability of an atom to lose electrons

• The ability of an atom to attract bonding electrons

• The ability of an atom to repel bonding electrons

• The ability of an atom to gain protons

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How does electronegativity change across a period?

• It fluctuates

• It increases

• It remains the same

• It decreases

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How does the size of a cation compare to its neutral atom?

• It is larger

• It fluctuates

• It is the same size

• It is smaller

How does the size of an anion compare to its neutral atom?

• It is larger

• It is smaller

• It fluctuates

• It is the same size