Periodic Table Trends

What can be removed from an atom if ionization energy is supplied?

• proton

• neutron

• electron

• ion

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112.35.c.5.C

Across a period in the periodic table (left to right), ionization energy generally ...

• decreases

• decreases, then increases

• increases

• remains constant

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112.35.c.5.C

Down a group in the periodic table, the change in ionization energy is

due to what?

• valence electrons being further from the nucleus

• increasing charge of the nucleus

• valence electrons being closer to the nucleus

• decreasing atomic radii

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112.35.c.5.C

What is atomic radius?

• the size of an atom

• the energy required to remove an electron from an atom

• the ability to attract electrons from other atoms

• how far an electron travels past orbit

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112.35.c.5.C

Why does atomic radius generally decrease as you move across a period?

• increased nuclear charge as you gain protons

• increased negative charge as you gain electrons

• increased gravitational force as the size changes

• the atom collapses due to decreased mass

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112.35.c.5.C

Electronegativity measures the ability of atoms to attract electrons. Which diagram correctly identifies both the period and group trends for electronegativity in the Periodic

Table?

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112.35.c.5.C

Use the periodic table to arrange the following elements in order of increasing atomic radii (radius)

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NGSS.HS-PS1-1

Which element has a greater electronegativity?

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112.35.c.5.C

Which element has the greater ionization energy?

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112.35.c.5.C

Which element has a greater atomic radius?

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112.35.c.5.C