Name two elements you would expect to show chemical reactions similar to magnesium. basis for your c

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Periodic Classification of Elements

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Name two elements you would expect to show chemical reactions similar to magnesium. What is the basis for your choice ?

Option A

Option B

Option C

Option D

Solution

Calcium $(Ca)$ and strontium $(Sr)$ are expected to show chemical reactions similar to magnesium $(Mg)$. This is because the number of valence electrons $(2)$ is same in all these three elements. And since chemical properties are due to valence electrons, they show same chemical reactions.

Standard 10

Science

Which element has

$(a)$ a total of three shells, with four electrons in its valence shell?

$(b)$ a total of two shells, with three electrons in its valence shell?

$(c)$ twice as many electrons in its second shell as in its first shell?

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Use Mendeléev’s Periodic Table to predict the formulae for the oxides of the following elements :

$K,\, C,\, Al,\, Si,\, Ba$.

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Did Dobereiner’s triads also exist in the columns of Newlands’ Octaves ? Compare and find out.

hard

Element $X$ forms a chloride with the formula $XCl_2$, which is a solid with a high melting point. $X$ would most likely be in the same group of the Periodic Table as

easy

Compare and contrast the arrangement of elements in Mendeléev’s Periodic Table and the Modern Periodic Table.

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Name two elements you would expect to show chemical reactions similar to magnesium. What is the basis for your choice ?

Solution

Similar Questions

Which element has $(a)$ a total of three shells, with four electrons in its valence shell? $(b)$ a total of two shells, with three electrons in its valence shell? $(c)$ twice as many electrons in its second shell as in its first shell?

Use Mendeléev’s Periodic Table to predict the formulae for the oxides of the following elements : $K,\, C,\, Al,\, Si,\, Ba$.

Did Dobereiner’s triads also exist in the columns of Newlands’ Octaves ? Compare and find out.

Element $X$ forms a chloride with the formula $XCl_2$, which is a solid with a high melting point. $X$ would most likely be in the same group of the Periodic Table as

Compare and contrast the arrangement of elements in Mendeléev’s Periodic Table and the Modern Periodic Table.

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Which element has

$(a)$ a total of three shells, with four electrons in its valence shell?

$(b)$ a total of two shells, with three electrons in its valence shell?

$(c)$ twice as many electrons in its second shell as in its first shell?

Use Mendeléev’s Periodic Table to predict the formulae for the oxides of the following elements :

$K,\, C,\, Al,\, Si,\, Ba$.