Electronics Element Chapter 2 Quiz

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  • 1/12 Questions

    Which of the following is found orbiting the atom?

    • Proton
    • Neutron
    • Electron
    • Nucleus
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About This Quiz

This quiz from electronics element Chapter 2 explores fundamental concepts of atomic structure, including the chemical organization, atomic number, and the role of electrons and isotopes. It is designed to assess knowledge of the purest forms of matter and their diagnostic applications.

Electronics Element Chapter 2 Quiz - Quiz

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  • 2. 

    Which forms of an element can be used as a diagnostic tool?

    • Isotopes

    • Radioisotopes

    • Atomic isotopes

    • Radioactive

    Correct Answer
    A. Radioisotopes
    Explanation
    Radioisotopes can be used as a diagnostic tool because they emit radiation that can be detected and measured. This radiation can be used to create images of internal structures in the body, such as bones or organs, or to track the movement of substances within the body. By using radioisotopes, doctors can diagnose and monitor various medical conditions, including cancer, heart disease, and thyroid disorders.

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  • 3. 

    Which of the following types of bonding is characterized by two or more atoms sharing electrons to fill their outer shells?

    • Ionic bond

    • Covalent bond

    • Charged bond

    • Hydrogen bond

    Correct Answer
    A. Covalent bond
    Explanation
    Covalent bonding is characterized by two or more atoms sharing electrons to fill their outer shells. In this type of bonding, atoms share electrons in order to achieve a stable electron configuration. This sharing of electrons allows both atoms to have a complete outer shell, resulting in a strong bond between the atoms. Ionic bonding involves the transfer of electrons, charged bonding is not a recognized term, and hydrogen bonding is a type of intermolecular force, not a type of bonding.

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  • 4. 

    All of the following are a level of organization in the human body except which one?

    • Organs

    • Cells

    • Atoms

    • Tissues

    Correct Answer
    A. Atoms
    Explanation
    The human body is organized in a hierarchical manner, with atoms being the smallest level of organization. Atoms combine to form molecules, which then form cells. Cells combine to form tissues, and tissues combine to form organs. Therefore, atoms are not a level of organization in the human body.

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  • 5. 

    What is the purest form of matter

    • Atom

    • Element

    • Molecule

    • Ion

    Correct Answer
    A. Element
    Explanation
    An element is the purest form of matter because it consists of only one type of atom. Atoms of the same element have the same number of protons in their nucleus, giving them unique chemical properties. Elements cannot be broken down into simpler substances by chemical means, making them the building blocks of all matter.

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  • 6. 

    Which of the following correctly describes the atomic number?

    • The combined number of protons and neutrons

    • The number of protons

    • The number of electrons

    • The combined number of protons and electrons

    Correct Answer
    A. The number of protons
    Explanation
    The atomic number refers to the number of protons in an atom. It is a unique identifier for each element on the periodic table. The number of protons determines the element's chemical properties and its position in the periodic table. Therefore, the correct answer is "The number of protons."

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  • 7. 

    Sodium Chloride is formed by joining a sodium and chlorine molecule in what type of bond?

    • Ionic bond

    • Covalent bond

    • Charged bond

    • Hydrogen bond

    Correct Answer
    A. Ionic bond
    Explanation
    Sodium chloride is formed by joining a sodium and chlorine molecule in an ionic bond. In an ionic bond, one atom transfers electrons to another atom, resulting in the formation of positive and negative ions. In the case of sodium chloride, sodium donates an electron to chlorine, creating a sodium ion with a positive charge and a chloride ion with a negative charge. These ions are then attracted to each other due to their opposite charges, forming an ionic bond.

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  • 8. 

    Which statement correctly describes a hypertonic solution when compared to another solution?

    • The solution is more concentrated with solutes that the other solution

    • The solution has the same concentration of solutes as the other solution

    • The solution is less concentrated with solutes than the other solution

    • The solution is less concentrated with solvent than the other solution

    Correct Answer
    A. The solution is more concentrated with solutes that the other solution
    Explanation
    A hypertonic solution is one that has a higher concentration of solutes compared to another solution. This means that there are more solute particles in the hypertonic solution relative to the other solution. This difference in solute concentration creates a concentration gradient, causing water molecules to move from the area of lower solute concentration (the other solution) to the area of higher solute concentration (the hypertonic solution) through a process called osmosis.

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  • 9. 

    what is a base

    • A molecule with a ph of 7

    • A molecule that releases a hydroxide ions when added to water

    • A molecule that releases hydrogen atoms when added to water

    • A molecule with a ph less than 7

    Correct Answer
    A. A molecule that releases a hydroxide ions when added to water
    Explanation
    A base is a molecule that releases hydroxide ions when added to water. This is because bases have the ability to accept protons (H+ ions) and donate hydroxide ions (OH-) in water, resulting in an increase in the concentration of hydroxide ions. A pH of 7 is neutral, not basic, and a pH less than 7 indicates acidity, not basicity.

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  • 10. 

    The chemical level of organization includes all of the following except which one?

    • The study of water

    • The study of body structure and organs

    • The study of atoms and how they form bonds

    • The study of organic molecules

    Correct Answer
    A. The study of body structure and organs
    Explanation
    The chemical level of organization refers to the study of atoms and how they form bonds, as well as the study of organic molecules. Therefore, the study of body structure and organs is not included in the chemical level of organization.

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  • 11. 

    What condition results if the bloods ph is less than 7.35

    • Acidosis

    • Alkalosis

    • Acidic

    • Alkaline

    Correct Answer
    A. Acidosis
    Explanation
    Acidosis is a condition that occurs when the blood pH level drops below 7.35. This means that there is an excess of acid in the body, which can disrupt normal bodily functions. Acidosis can be caused by various factors such as respiratory or metabolic issues, kidney disease, or certain medications. Symptoms of acidosis may include fatigue, confusion, rapid breathing, and increased heart rate. Treatment for acidosis typically involves addressing the underlying cause and restoring the pH balance in the body.

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  • 12. 

    What is an acid?

    • A molecule with a PH of 7

    • A molecule that releases hydroxide ions when added to water

    • A molecule that releases hydrogen atoms when added to water

    • A molecule with a PH of higher than 7

    Correct Answer
    A. A molecule that releases hydrogen atoms when added to water
    Explanation
    An acid is a molecule that releases hydrogen atoms when added to water. When an acid dissolves in water, it donates a hydrogen ion (H+) to the water molecule, resulting in the formation of hydronium ions (H3O+). This release of hydrogen atoms is what characterizes an acid. Acids can have a pH lower than 7, indicating their acidic nature.

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  • Aug 23, 2024
    Quiz Edited by
    ProProfs Editorial Team
  • May 10, 2014
    Quiz Created by
    Kasey1127
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