Atoms and Molecules Worksheet Y9 Module 2.1
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Questions and Answers

What is the chemical structure of diamond?

  • C4
  • C6
  • C2
  • C (correct)

What is the location of electrons in an atom?

  • In the protons
  • In shells around the nucleus (correct)
  • Outside the atom
  • In the nucleus

What is the charge of the nucleus of an atom?

  • Positive (correct)
  • It depends on the element
  • No charge
  • Negative

What is the classification of oxygen gas?

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

What is the chemical structure of table salt (sodium chloride)?

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

What is the number of protons in the atom of Calcium (Ca)?

<p>20 (B)</p> Signup and view all the answers

Which element is a non-metal?

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

What is the term for an atom that has gained an electron?

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

What is the atomic symbol for the element Manganese?

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

Which atoms typically lose electrons?

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

What is the electron configuration of a fluoride ion?

<p>2, 8 (C)</p> Signup and view all the answers

What is the purpose of using Roman numerals when naming a cation?

<p>To indicate the charge of the ion (A)</p> Signup and view all the answers

What is the chemical symbol for the manganese ion with a charge of 4+?

<p>Mn4+ (C)</p> Signup and view all the answers

What is the name of the anion with the chemical symbol S2-?

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

What is the electron configuration of a fluorine atom?

<p>2, 7 (B)</p> Signup and view all the answers

Which of the following is a characteristic of an ion?

<p>It has gained or lost electrons (B)</p> Signup and view all the answers

What type of ion is formed when a metal atom loses electrons?

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

Which elements are unlikely to form ions?

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

What is the electron configuration of a sodium ion?

<p>2, 8 (C)</p> Signup and view all the answers

What is the process by which anions are formed?

<p>Electron gain by non-metal atoms (C)</p> Signup and view all the answers

Match the following atoms with their resulting ions when they gain or lose electrons:

<p>A chlorine atom that has gained 1 electron = Cl- anion A sodium atom that has lost 1 electron = Na+ cation A nitrogen atom that has gained 3 electrons = N3- anion An iron atom that has lost 2 electrons = Fe2+ cation</p> Signup and view all the answers

Match the following descriptions with the type of ion:

<p>An ion that has lost electrons to become overall positively charged = Cation An ion that has gained electrons to become overall negatively charged = Anion An ion that has the same number of protons as electrons = Atom An ion that never forms at all = Noble gases</p> Signup and view all the answers

Match the following elements with the type of ions they can form:

<p>Metals = Cations Non-metals = Anions Noble gases = Neither cations nor anions Hydrogen = Cations</p> Signup and view all the answers

Match the following electron configurations with the corresponding atom or ion:

<p>2, 8, 1 = A sodium atom 2, 8 = A sodium ion 1, 2 = A hydrogen atom 1, 2, 3 = A nitrogen atom</p> Signup and view all the answers

Match the following processes with the type of ion formed:

<p>Metal atom loses electrons = Cation Non-metal atom gains electrons = Anion Metal atom gains electrons = Anion Non-metal atom loses electrons = Cation</p> Signup and view all the answers

Match the elements with their respective atomic numbers:

<p>Carbon = 6 Calcium = 20 Chlorine = 17 Copper = 29</p> Signup and view all the answers

Match the elements with their classification as metal or non-metal:

<p>Fluorine = Non-metal Titanium = Metal Iodine = Non-metal Zinc = Metal</p> Signup and view all the answers

Match the ion formation processes with their descriptions:

<p>Cation = An atom that has lost an electron Anion = An atom that has gained an electron Metals = Atoms that lose electrons Non-metals = Atoms that gain electrons</p> Signup and view all the answers

Match the elements with their atomic symbols:

<p>Carbon = C Manganese = Mn Xenon = Xe Uranium = U</p> Signup and view all the answers

Match the elements with their special properties:

<p>Hydrogen = Can both lose or gain an electron Metals = Typically lose electrons Non-metals = Typically gain electrons Noble Gases = Unreactive</p> Signup and view all the answers

Match the following cations with their chemical symbols:

<p>Sodium ion = Na+ Lithium ion = Li+ Magnesium ion = Mg2+ Copper II ion = Cu2+</p> Signup and view all the answers

Match the following anions with their chemical symbols:

<p>Hydride = H- Sulfide = S2- Phosphide = P3- Iodide = I-</p> Signup and view all the answers

Match the following electron configurations with their corresponding ions:

<p>2, 7 = A fluorine atom 2, 8 = A fluoride ion 1, 1 = A hydrogen ion Not specified = Not specified</p> Signup and view all the answers

Match the following types of ions with their characteristics:

<p>Metal ions = Tend to lose electrons Non-metal ions = Tend to gain electrons Noble gas ions = Do not exist Polyatomic ions = Have multiple atoms</p> Signup and view all the answers

Match the following ions with their names:

<p>Fe3+ = Iron (III) ion Al3+ = Aluminium ion Ba2+ = Barium ion Mn4+ = Manganese ion</p> Signup and view all the answers

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