Physical Science

For each of the following sets of elements, identify the element expected to be most electronegative.

• K

• Sc

• Ca

For each of the following sets of elements, identify the element expected to be least electronegative.

• Br

• F

• At

Identify the type of bond of the following atoms based on their electronegativity difference.

P ------- Si

• Ionic

• Polar covalent

• Non polar covalent

Identify the type of bond of the following atoms based on their electronegativity difference.

K ----- N

• Ionic

• Polar covalent

• Non polar covalent

Identify the type of bond of the following atoms based on their electronegativity difference.

H ----- F

• Ionic

• Polar covalent

• Non polar covalent

Pb (Lead) would have the same Lewis dot structure as to which molecule below?

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Se (Selenium) would have the same Lewis dot structure as to which molecule below?

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Bi (Bismuth) would have the same Lewis dot structure as to which molecule below?

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What is the chemical formula and name of the molecular structure shown above?

• C₂H₂

• C₂H₄

• CH₄

Which atom would most likely fit in this lewis structure?

• Carbon

• Nitrogen

• Oxygen

• Flourine