Vocabulary Lesson on Atoms
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Questions and Answers

Which of the following terms describes a material that can be hammered or rolled into flat sheets?

  • Ductile
  • Reactive
  • Malleable (correct)
  • Luster

What is the term used to describe a covalent bond in which electrons are shared unequally?

  • Molecular compound
  • Ionic bond
  • Nonpolar bond
  • Polar bond (correct)

Which of the following is an example of an acid found in the human body?

  • Hydrochloric acid (correct)
  • Sulfuric acid
  • Phosphoric acid
  • Folic acid

What is the term used to describe a substance that can conduct electric current under certain conditions?

<p>Semiconductor (A)</p> Signup and view all the answers

How do you find the number of valence electrons for an element using the periodic table?

<p>The number of valence electrons is equal to the atom's main group number. (B)</p> Signup and view all the answers

What is the term used to describe an ionic compound made from the neutralization of an acid with a base?

<p>Salt (B)</p> Signup and view all the answers

Which of the following particles has a positive charge?

<p>Proton (C)</p> Signup and view all the answers

What is the number of protons in the nucleus called?

<p>Atomic number (A)</p> Signup and view all the answers

Which of these defines a compound?

<p>A substance formed when atoms bond in a specific ratio (B)</p> Signup and view all the answers

What do the elements in the same vertical column of the periodic table have in common?

<p>Group/family (B)</p> Signup and view all the answers

Which electrons are involved in chemical bonding?

<p>Valence electrons (D)</p> Signup and view all the answers

What do isotopes of the same element have in common?

<p>Number of protons (D)</p> Signup and view all the answers

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