Which of following statements is not a correct statement about trends when going from left to right

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Periodic Classification of Elements

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Which of the following statements is not a correct statement about the trends when going from left to right across the periods of periodic Table.

The elements become less metallic in nature.

The number of valence electrons increases.

The atoms lose their electrons more easily.

The oxides become more acidic.

Solution

The atoms lose their electrons more easily. (On moving from left to right across the periods of the periodic table, the non-metallic character increases. Hence, the tendency to lose electrons decreases.)

Standard 10

Science

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

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What were the limitations of Dobereiner’s classification ?

easy

By considering their position in the Periodic Table, which one of the following elements would you expect to have maximum metallic characteristic ?

$Ga$ $Ge$ $As$ $Se$ $Be$

easy

In the Modern Periodic Table, calcium (atomic number $20$) is surrounded by elements with atomic numbers $12$, $19$, $21$ and $38$. Which of these have physical and chemical properties resembling calcium?

easy

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

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

medium

Which of the following statements is not a correct statement about the trends when going from left to right across the periods of periodic Table.

Solution

Similar Questions

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

What were the limitations of Dobereiner’s classification ?

By considering their position in the Periodic Table, which one of the following elements would you expect to have maximum metallic characteristic ? $Ga$ $Ge$ $As$ $Se$ $Be$

In the Modern Periodic Table, calcium (atomic number $20$) is surrounded by elements with atomic numbers $12$, $19$, $21$ and $38$. Which of these have physical and chemical properties resembling calcium?

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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By considering their position in the Periodic Table, which one of the following elements would you expect to have maximum metallic characteristic ?

$Ga$ $Ge$ $As$ $Se$ $Be$

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

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