Chemistry Quiz: Life Chemistry - Atoms And Their Bonds.

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  • 1/8 Questions

    Which of the following is hydrophobic?

    • A. Molecules containing non-polar covalent bonds only
    • B. Molecules containing polar covalent or ionic bonds
    • C. Molecules containing polar covalent bonds only
    • D. Molecules containing ionic bonds only
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About This Quiz


The study of atoms has often been dubbed the Chemistry of life, because atoms make up every single matter in this universe. Let's take a focus on the type of bonds in this quick quiz!

Chemistry Quiz: Life Chemistry - Atoms And Their Bonds. - Quiz

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  • 2. 

    An ionic bond is most likely to form between:

    • A. two negatively charged ions.

    • B. two positively charged ions.

    • C. a negatively and a positively charged ion.

    • D. two uncharged atoms.

    Correct Answer
    A. C. a negatively and a positively charged ion.
    Explanation
    An ionic bond is formed when there is a transfer of electrons from one atom to another, resulting in the formation of ions. In this case, a negatively charged ion (anion) and a positively charged ion (cation) are required to form an ionic bond. This is because the positively charged ion will have a tendency to donate electrons, while the negatively charged ion will have a tendency to accept electrons. Therefore, option C, which states that an ionic bond is most likely to form between a negatively and a positively charged ion, is the correct answer.

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  • 3. 

    Which of the following carries a negative charge?

    • A. A proton

    • B. A neutron

    • C. An electron

    • D. The nucleus

    Correct Answer
    A. C. An electron
    Explanation
    An electron carries a negative charge. Electrons are subatomic particles that orbit around the nucleus of an atom. They have a fundamental negative charge and are responsible for the flow of electricity in conductors. Protons, on the other hand, carry a positive charge, while neutrons have no charge. The nucleus is the central part of an atom that contains protons and neutrons, but it does not carry a charge itself.

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  • 4. 

    In a non-polar covalent bond:

    • A. the two atoms forming the bond have a different affinity for electrons.

    • B. the two atoms forming the bond have the same affinity for electrons.

    • C. there are partial charges on the atoms forming the bond.

    • D. the two atoms forming the bond are held together by opposing charges.

    Correct Answer
    A. B. the two atoms forming the bond have the same affinity for electrons.
    Explanation
    In a non-polar covalent bond, the two atoms forming the bond have the same affinity for electrons. This means that neither atom has a greater attraction for the shared electrons, resulting in an equal sharing of electrons between the atoms. As a result, there are no partial charges on the atoms forming the bond, and the bond is not held together by opposing charges.

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  • 5. 

    Which of the following atoms is a negatively charged ion? 

    • A. An atom that becomes stable by gaining an electron

    • B. An atom that becomes stable by losing an electron

    • C. An atom that is stable without gaining or losing electrons

    • D. An inert gas

    Correct Answer
    A. A. An atom that becomes stable by gaining an electron
    Explanation
    A negatively charged ion is formed when an atom gains one or more electrons. By gaining an electron, the atom becomes negatively charged because the number of electrons exceeds the number of protons, resulting in a net negative charge. This process allows the atom to achieve a stable electron configuration similar to that of a noble gas. Therefore, option A is the correct answer as it describes an atom that becomes stable by gaining an electron.

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  • 6. 

    A covalent bond is most likely to form between:    

    • A. two salts.

    • B. a negatively and a positively charged ion.

    • C. two atoms, both of which typically become stable by losing an electron.

    • D. two atoms, both of which typically become stable by gaining an electron.

    Correct Answer
    A. D. two atoms, both of which typically become stable by gaining an electron.
    Explanation
    A covalent bond is formed when two atoms share electrons in order to achieve stability. In this case, both atoms are described as typically becoming stable by gaining an electron. This suggests that both atoms have a tendency to gain an electron in order to achieve a full outer electron shell. Therefore, it is most likely that a covalent bond would form between two atoms that both typically become stable by gaining an electron.

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  • 7. 

    Which of the following electrons has the most energy?

    • A. An electron that is very stable

    • B. An electron that is in the first shell, closest to the nucleus

    • C. An electron that is in a shell relatively distant from the nucleus

    • D. An electron that is tightly held by the nucleus

    Correct Answer
    A. C. An electron that is in a shell relatively distant from the nucleus
    Explanation
    An electron that is in a shell relatively distant from the nucleus has the most energy because electrons in higher energy levels are further away from the attractive force of the nucleus and experience less electrostatic attraction. As a result, they are less tightly bound to the nucleus and have more energy.

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  • 8. 

    The most basic unit of an element is:

    • A. a proton.

    • B. a neutron.

    • C. an electron.

    • D. an atom.

    Correct Answer
    A. A. a proton.
    Explanation
    The most basic unit of an element is an atom, which is composed of protons, neutrons, and electrons. While a proton is one of the components of an atom, it is not the most basic unit itself.

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  • May 08, 2025
    Quiz Edited by
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  • Oct 23, 2015
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