4.2-3 Quiz: Chemical Bonds

What is a valence electron?

• an electron that is found in the outermost shell of an atom

• an electron found in the innermost shell of an atom

• an electron found in the middle shell

• an electon found in the nucleus

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NGSS.HS-PS1-1

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What is the number of valence electrons of Oxygen?

• 1

• 2

• 6

• 8

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NGSS.HS-PS1-1

Predict the bond that will form between Se and Cl

• Ionic-bond

• Covalent-bond

• Metallic-bond

• Hydrogen-bond

Tags

NGSS.HS-PS1-1

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How do covalent bonds form?

• Donating & receiving valence e- between atoms.
• Opposite slight charges attract each other between compounds.
• Scientists are still not sure how they form.
• Sharing valence e- between atoms.

Tags

NGSS.HS-PS1-1

Ionic Bonds are between

• two metals

• two nonmetals

• a metal and a nonmetal

Predict the bond formed between Be and F

• Covalent-bond

• Ionic-bond

• Metallic-bond

• Hydrogen-bond

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NGSS.HS-PS1-1

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Ionic compounds are formed when one or more valence electrons are transferred from _____

• a nonmetal atom to a metal atom
• a nonmetal atom to a nonmetal atom
• a metal atom to a nonmetal atom
• a metal atom to a metal atom

The correct formula for Beryllium chloride is

• BCl₃

• BeCl₂

• Be₃Cl

• BeCl

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NGSS.HS-PS1-1

dinitrogen pentoxide

• N₂O₅

• NO₅

• N₅O₂

• N₂O₆

An atom with 1 valence electron 'needs' a full shell, so it can either gain 7 electrons or lose 1. Which is more likely to occur?

• nothing

• gain 7

• lose 1

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2