Mastering Chemical Bonds

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Questions and Answers

Which subatomic particle has a positive charge?

  • Electron
  • Valence electron
  • Proton (correct)
  • Neutron

Which subatomic particle has a charge of -1?

  • Proton
  • Electron (correct)
  • Neutron
  • Valence electron

What is the atomic number of carbon?

  • 2
  • 8
  • 6 (correct)
  • 12

What type of bond is formed when two atoms share valence electrons?

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

What are atoms called when they have lost or gained electrons?

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

Which term describes the state where attractive forces between atoms hold them together at a particular distance from each other and in a particular configuration?

<p>Chemical bond (D)</p> Signup and view all the answers

What is a compound?

<p>A combination of different elements held together by chemical bonds (A)</p> Signup and view all the answers

Which statement about elements is correct?

<p>Elements are organized in the periodic table according to their atomic number (D)</p> Signup and view all the answers

What is rust made of?

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

How many known elements are there currently?

<p>118 (C)</p> Signup and view all the answers

Which of the following is true about ionic bonds?

<p>Ionic bonds are formed between ions of opposite charge. (A)</p> Signup and view all the answers

What force holds ionic compounds together?

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

Which of the following is an example of an ionic compound?

<p>Sodium chloride (NaCl) (C)</p> Signup and view all the answers

How are cations formed?

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

What happens when an atom gains electrons?

<p>It becomes an anion with a negative charge (B)</p> Signup and view all the answers

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