Gr 10 Physical Sciences Ch 3: Chemical properties of the groups
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Questions and Answers

What is a common characteristic of alkali metals?

  • They are very hard.
  • They are highly reactive, especially with water. (correct)
  • They have low melting points.
  • They are not shiny.

    • What is the general electron configuration of alkaline earth metals?

  • [noble gas]ns² (correct)
  • [noble gas]ns¹
  • [noble gas]ns²np²
  • [noble gas]ns²np¹

    • Which group of elements has a variable electron configuration?

  • Groups 3-12: Transition Metals (correct)
  • Group 2: Alkaline Earth Metals
  • Group 13
  • Group 1: Alkali Metals

    • What is a characteristic of group 14 elements?

    <p>They contain non-metals, metalloids, and metals.</p> Signup and view all the answers

    What is the general electron configuration of group 15 elements?

    <p>[noble gas]ns²np³</p> Signup and view all the answers

    Which element is essential for respiration?

    <p>Oxygen (O)</p> Signup and view all the answers

    What is a characteristic of group 1 and group 2 elements?

    <p>They are highly reactive and have high melting points.</p> Signup and view all the answers

    What is the general trend of reactivity in group 1 and group 2 elements?

    <p>Reactivity increases down the group.</p> Signup and view all the answers

    What is a characteristic of group 17 elements?

    <p>They are very reactive non-metals.</p> Signup and view all the answers

    What is the general electron configuration of group 17 elements?

    <p>[noble gas]ns²np⁵</p> Signup and view all the answers

    What happens to the reactivity of group 17 elements as you move down the group?

    <p>It decreases.</p> Signup and view all the answers

    What is a characteristic of group 18 elements?

    <p>They are inert gases.</p> Signup and view all the answers

    What is the general trend in atomic radius as you move down a group?

    <p>It increases.</p> Signup and view all the answers

    What is the general trend in ionisation energy as you move down a group?

    <p>It decreases.</p> Signup and view all the answers

    What is the general trend in electronegativity as you move down a group?

    <p>It decreases.</p> Signup and view all the answers

    What is a characteristic of group 1 elements?

    <p>They have a single electron in their outermost shell.</p> Signup and view all the answers

    What is the primary reason for the reactivity of alkali metals?

    <p>Their ability to easily lose one electron</p> Signup and view all the answers

    Which group of elements has the highest melting points and densities?

    <p>Transition metals</p> Signup and view all the answers

    Which element is a major component of the Earth's atmosphere?

    <p>Nitrogen</p> Signup and view all the answers

    What is the general trend of reactivity in group 13 elements?

    <p>Varies down the group</p> Signup and view all the answers

    Which group of elements includes metals, metalloids, and non-metals?

    <p>Group 14</p> Signup and view all the answers

    What is the electron configuration of iron?

    <p>Variable, involving d-electrons</p> Signup and view all the answers

    Which group of elements has the highest ionization energy?

    <p>Group 18: Noble gases</p> Signup and view all the answers

    What is the characteristic of group 16 elements that makes them essential for life?

    <p>Their role in respiration</p> Signup and view all the answers

    Which group of elements is characterized by being very reactive non-metals?

    <p>Group 17</p> Signup and view all the answers

    What is the general trend in atomic radius as you move down a group of elements?

    <p>It increases</p> Signup and view all the answers

    Which of the following elements is an example of a noble gas?

    <p>Neon</p> Signup and view all the answers

    What is the general trend in electronegativity as you move down a group of elements?

    <p>It decreases</p> Signup and view all the answers

    What is the general electron configuration of Group 17 elements?

    <p>[noble gas]ns²np⁵</p> Signup and view all the answers

    What is the general trend in reactivity of Group 17 elements as you move down the group?

    <p>It decreases</p> Signup and view all the answers

    What is the general trend in density as you move down a group of elements?

    <p>It increases</p> Signup and view all the answers

    Which group of elements has a characteristic of being inert gases?

    <p>Group 18</p> Signup and view all the answers

    What is the primary reason for the reactivity of halogens?

    <p>Their electron shells are incomplete</p> Signup and view all the answers

    What is the general trend in melting and boiling points down a group of elements?

    <p>They vary widely depending on the type of element</p> Signup and view all the answers

    What is the characteristic of noble gases that makes them unreactive?

    <p>Their electron shells are complete</p> Signup and view all the answers

    What is the general trend in atomic radius as you move down a group of elements?

    <p>It increases</p> Signup and view all the answers

    What happens to the ionisation energy of elements as you move down a group?

    <p>It decreases</p> Signup and view all the answers

    What is the general trend in electronegativity as you move down a group of elements?

    <p>It generally decreases</p> Signup and view all the answers

    What is the characteristic of halogens that makes them form salts when combined with metals?

    <p>They are highly reactive</p> Signup and view all the answers

    What is the general trend in density as you move down a group of elements?

    <p>It typically increases</p> Signup and view all the answers

    Which group of elements is characterized by having a general electron configuration of [noble gas]ns²np⁴?

    <p>Group 16</p> Signup and view all the answers

    What is the general trend in reactivity of Transition Metals?

    <p>Varies down the group</p> Signup and view all the answers

    Which group of elements has a characteristic of having high melting points and densities?

    <p>Transition Metals</p> Signup and view all the answers

    What is the general electron configuration of Alkali Metals?

    <p>[noble gas]ns¹</p> Signup and view all the answers

    Which element is a major component of the Earth's atmosphere?

    <p>Nitrogen</p> Signup and view all the answers

    Which group of elements has a characteristic of being highly reactive, especially with water?

    <p>Alkali Metals</p> Signup and view all the answers

    Which group of elements includes non-metals, metalloids, and metals?

    <p>Group 14</p> Signup and view all the answers

    What is the general trend in reactivity of Alkaline Earth Metals?

    <p>Increases down the group</p> Signup and view all the answers

    What is the general trend in the reactivity of Group 17 elements as you move down the group?

    <p>It decreases.</p> Signup and view all the answers

    What is the general electron configuration of Group 18 elements?

    <p>[noble gas]ns²np⁶</p> Signup and view all the answers

    Which of the following is a characteristic of Group 17 elements?

    <p>They are very reactive non-metals.</p> Signup and view all the answers

    What is the general trend in ionisation energy as you move down a group?

    <p>It decreases.</p> Signup and view all the answers

    What is the general trend in atomic radius as you move down a group?

    <p>It increases.</p> Signup and view all the answers

    What is the general trend in electronegativity as you move down a group?

    <p>It decreases.</p> Signup and view all the answers

    What is the general trend in density as you move down a group?

    <p>It increases.</p> Signup and view all the answers

    Which group of elements has a characteristic of being inert gases?

    <p>Group 18</p> Signup and view all the answers

    What is the general trend of reactivity in group 1 and group 2 elements as you move down the group?

    <p>It increases in both groups</p> Signup and view all the answers

    Which group of elements has the characteristic of being shiny, but tarnish quickly when exposed to air?

    <p>Alkali Metals</p> Signup and view all the answers

    What is the general electron configuration of the elements in group 16?

    <p>[noble gas]ns²np⁴</p> Signup and view all the answers

    Which group of elements includes metals, metalloids, and non-metals and has a variable electron configuration?

    <p>Group 14</p> Signup and view all the answers

    What is the characteristic of the elements in group 3-12 that distinguishes them from other groups?

    <p>They are often colored</p> Signup and view all the answers

    Which group of elements has the characteristic of being highly reactive, especially with water, and having a general electron configuration of [noble gas]ns¹?

    <p>Alkali Metals</p> Signup and view all the answers

    What is the characteristic of the elements in group 15 that makes them essential for life?

    <p>They are essential for respiration</p> Signup and view all the answers

    Which group of elements has the characteristic of having high melting points and densities and often forming colored compounds?

    <p>Transition Metals</p> Signup and view all the answers

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