Periodic Trends & Properties

Which has the greater electronegativity:

Cl or Al?

• Cl

• Al

Which has the greater ionization energy:

N or C?

• C

• N

Which has the greater ionization energy:

H or F?

• H

• F

Which element in Period 2 has the greatest atomic radius?

• Be

• C

• Na

• Li

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NGSS.HS-PS1-1

Which of the group 13 elements is the largest?

• B

• Tl

• Fr

• Ga

Of the halogens, which has the smallest radius?

• F

• Br

• He

• At

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NGSS.HS-PS1-1

Electronegativity is the...

• energy needed to remove the outermost electron.
• ability of an atom to attract electrons from another atom.

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NGSS.HS-PS1-1

NGSS.HS-PS1-2

Ionization energy is the...

• energy needed to remove the outermost electron.
• ability of an atom to attract electrons from another atom.

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Atomic radius generally increases as we move __________.  

• down a group and from right to left across a period 
• up a group and from left to right across a period 
• down a group and from left to right across a period 
• up a group and from right to left across a period 

Tags

NGSS.HS-PS1-1

Electronegativity __________ from left to right within a period and __________ from top to bottom within a group.

• decreases, increases 
• increases, increases
• increases, decreases 
• stays the same, increases

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NGSS.HS-PS1-1

NGSS.HS-PS1-2