Which has the smaller Electronegativity?

• Cl

• Al

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NGSS.HS-PS1-1

Which has the larger Electronegativity?

• Carbon

• Nitrogen

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NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which of these has the smallest atomic radius?

• K

• Rb

• Fr

• Cs

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NGSS.HS-PS1-1

Which has the smaller ionization energy?

• P

• Mg

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NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which has the highest ionization energy?

• Ca

• As

• Br

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NGSS.HS-PS1-1

NGSS.HS-PS1-2

Atomic radius measures

• the size of an atom.

• The ability to attract electrons towards itself.

• Energy required to REMOVE an electron from an atom.

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NGSS.HS-PS1-1

Electronegativity measures

• the size of an atom.

• The ability to attract electrons towards itself.

• Energy required to REMOVE an electron from an atom.

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NGSS.HS-PS1-1

NGSS.HS-PS1-2

Ionization Energy measures

• the size of an atom.

• The ability to attract electrons towards itself.

• Energy required to REMOVE an electron from an atom.

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NGSS.HS-PS1-2

Atomic radius increases

• to the right and upwards

• to the left and upwards

• to the right and downwards

• to the left and downwards

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NGSS.HS-PS1-1

Electronegativity increases

• to the right and upwards

• to the left and upwards

• to the right and downwards

• to the left and downwards

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NGSS.HS-PS1-1

NGSS.HS-PS1-2