Alkali Metals and Alkaline Earth Metals Properties

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Questions and Answers

Which property is shared by both alkali metals and alkaline earth metals?

  • They are hard and brittle
  • They are poor conductors of heat and electricity
  • They are soft and malleable (correct)
  • They are highly unreactive

What is the key difference between the reactivity of alkali metals and alkaline earth metals?

  • Alkaline earth metals are more reactive and will explode on contact with water, while alkali metals are less reactive and will only react vigorously with water.
  • Neither alkali metals nor alkaline earth metals will react with water.
  • Alkali metals are more reactive and will explode on contact with water, while alkaline earth metals are less reactive and will only react vigorously with water. (correct)
  • Both alkali metals and alkaline earth metals will explode on contact with water.

Which property is unique to the transition metals?

  • Malleability and ductility
  • Ability to form complex ions (correct)
  • Good conductivity of heat and electricity
  • High melting and boiling points

What is the key difference between the reactivity of lanthanides and actinides?

<p>Actinides are more reactive and form more complex compounds than lanthanides. (D)</p> Signup and view all the answers

What is the origin of the term 'pnictogens' used to describe the nitrogen group elements?

<p>They are derived from the Greek word for 'choking gas', referring to the toxic nature of some nitrogen compounds. (A)</p> Signup and view all the answers

Which type of elements do not react with other elements on the periodic table?

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

What type of elements are found on the left side of the Periodic Table of Elements?

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

What is a common property of non-metals?

<p>Dull in appearance (C)</p> Signup and view all the answers

Which type of elements have some properties of metal but behave chemically like a nonmetal in certain instances?

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

What is the significance of the stair-step line on the Periodic Table?

<p>Divides metals from nonmetals (A)</p> Signup and view all the answers

Flashcards

What property do alkali metals and alkaline earth metals share?

Alkali metals and alkaline earth metals are both soft and malleable.

What is the key difference in reactivity between alkali metals and alkaline earth metals?

Alkali metals are more reactive and often explode in water, while alkaline earth metals are less reactive and react vigorously.

What property is unique to transition metals?

Transition metals have the unique ability to form complex ions.

What is the key difference in reactivity between lanthanides and actinides?

Actinides are more reactive and form more complex compounds than lanthanides.

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Where does the term 'pnictogens' originate?

The term 'pnictogens', used for the nitrogen group, comes from the Greek word for 'choking gas', referring to the toxic nature of some nitrogen compounds.

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What type of elements don't react with other elements on the periodic table?

Noble gases are inert elements that don't readily react with other elements.

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Where are metals located on the Periodic Table of Elements?

Metals are typically found on the left side of the periodic table.

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What is a common property of non-metals?

Non-metals are generally dull in appearance.

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What type of elements have some properties of metal but behave like non-metals in certain instances?

Metalloids have properties of both metals and non-metals, depending on the situation.

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What is the significance of the stair-step line on the Periodic Table?

The stair-step line separates metals from non-metals on the Periodic Table.

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