Welcome to the Quiz!

This quiz contains 17 questions from a mix of 1 subtopics.

What is electronegativity?

the number of neutrons in the nucleus of an atom

the number of protons in the nucleus of an atom

the measurement of the atomic radius of an element

the attraction of a bonded atom for the pair of electrons in a covalent bond

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What factors affect the electronegativity of an atom?

(Select all that apply).

the number of electron shells

the number of protons in the nucleus

the number of neutrons in the nucleus

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Electronegativity across a period and up a group.

increases
increases

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How is electronegativity measured?

by measuring the atomic mass of an element

using the Pauling scale

by calculating the atomic radius of an element

by counting the number of electrons in an atom

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Which element is the most electronegative?

oxygen

chlorine

nitrogen

fluorine

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Which group of elements have the least electronegative atoms?

group 1 metals

transition metals

group 7 halogens

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What is the term for a bond where the bonded electron pair is shared equally between the bonded atoms?

ionic bond

polar bond

metallic bond

non-polar bond

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What is the term for the separation of opposite charges in a polar covalent bond?

ion

covalent bond

metallic bond

dipole

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What is the term for a molecule with one permanent dipole?

metallic molecule

ionic molecule

polar molecule

non-polar molecule

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What is the term for a molecule with more than two polar bonds where the dipoles reinforce one another?

non-polar molecule

ionic molecule

polar molecule

metallic molecule

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What is the term for a molecule with more than two polar bonds where the dipoles cancel out?

non-polar molecule

ionic molecule

metallic molecule

polar molecule

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What is the difference in electronegativity between atoms forming an ionic bond?

the atoms have a large difference in electronegativity

the atoms have similar electronegativity

the atoms have identical electronegativity

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What is the charge on the oxygen atom of a water molecule, H2O?

δ-

δ+

-

+

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What is the charge on the hydrogen atoms of a water molecule, H2O?

-

δ-

+

δ+

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Describe the arrangement of polar bonds in a polar molecule.

nonpolar bonds are arranged symmetrically 

polar bonds are arranged asymmetrically 

nonpolar bonds are arranged asymmetrically 

polar bonds are arranged symmetrically 

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How is the electron density shared between the two bonding atoms in a non-polar covalent bond?

equally

unequally

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What is the difference in electronegativity between atoms forming a purely non-polar covalent bond?

the atoms have a large difference in electronegativity

the atoms have identical electronegativity

the atoms have similar electronegativity

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