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

What is the general electron configuration of group 15 elements?

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

Which element is essential for respiration?

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

What is a characteristic of group 17 elements?

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

What is the general electron configuration of group 17 elements?

<p>[noble gas]ns²np⁵ (D)</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. (D)</p> Signup and view all the answers

What is a characteristic of group 18 elements?

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

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

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

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

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

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

<p>It decreases. (A)</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. (A)</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 (D)</p> Signup and view all the answers

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

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

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

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

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

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

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

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

What is the electron configuration of iron?

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

Which group of elements has the highest ionization energy?

<p>Group 18: Noble gases (C)</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 (D)</p> Signup and view all the answers

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

<p>Group 17 (B)</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 (A)</p> Signup and view all the answers

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

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

What is the general electron configuration of Group 17 elements?

<p>[noble gas]ns²np⁵ (C)</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 (D)</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 (D)</p> Signup and view all the answers

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

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

What is the primary reason for the reactivity of halogens?

<p>Their electron shells are incomplete (B)</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 (C)</p> Signup and view all the answers

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

<p>Their electron shells are complete (B)</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 (D)</p> Signup and view all the answers

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

<p>It decreases (B)</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 (D)</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 (C)</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 (C)</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 (A)</p> Signup and view all the answers

What is the general trend in reactivity of Transition Metals?

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

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

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

What is the general electron configuration of Alkali Metals?

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

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

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

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

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

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

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

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

<p>Increases down the group (C)</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. (B)</p> Signup and view all the answers

What is the general electron configuration of Group 18 elements?

<p>[noble gas]ns²np⁶ (A)</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. (A)</p> Signup and view all the answers

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

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

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

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

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

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

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

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

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

<p>Group 18 (D)</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 (A)</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 (D)</p> Signup and view all the answers

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

<p>[noble gas]ns²np⁴ (C)</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 (A)</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 (C)</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 (C)</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 (D)</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 (D)</p> Signup and view all the answers

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