Periodic Trends IB SL

What is the trend for atomic radius moving down the periodic table?

• increase

• decrease

What is the reason for why electronegativity increases across a period on the periodic table?

• the inner electron shielding increases

• the inner electron shielding decreases

• the effective nuclear charge increases

• the effective nuclear charge decreases

Why does ionization decrease from Be to B instead of increase like the rest of the period trend?

• a 2p sublevel is added on B

• electron-electron repulsion is taking place in the 2p sublevel

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Why does the ionization energy decrease between N and O instead of increase?

• a 2p sublevel is added on O

• electron-electron repulsion is taking place in the 2p sublevel of O

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Which element has a higher melting point?

• Cs

• Na

• Mg

• Al

Which element is the most reactive?

• F

• Cl

• Br

• I

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The energy required to remove an electron from an atom is the ________.

• ionization energy

• electronegativity

• electron affinity

• atomic radius

The ability to attract an electron from another atom is known as _____.

• ionization energy

• electronegativity

• electron affinity

• atomic radius

Which of the following as the largest atomic radius?

• O

• S

• Se

• Te

Which of the following has the smallest electronegativity?

• As

• Ca

• Ti

• Rb

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