Chemistry GK · all questions

Periodic Classification of elements
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Q141

. . . . . . . . is the only non-metal present in group 1 of the modern periodic table?

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Q142

Which one of the following properties changes with valency?

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Q143

Which group of Periodic Table contains no metal?

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Q144

In a group, the number of valence electrons . . . . . . . .

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Q145

In the periodic table, aluminium is related to the diagonal . . . . . . . .?

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Q146

From the given options, fill in the blanks using the correct option for the following statement . . . . . . . . the element has the greatest tendency to lose electrons.

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Q147

Which is the only non-metal present on the left in the modern periodic table?

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Q148

O, S and Se what is the correct sequence of atomic sizes of these elements?

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Q149

Where are metals placed in the modern periodic table?

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Q150

Are the minimum reactive elements of the periodic table.

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Q151

The following options depict a particular characteristic of elements and their variation in the period from left to right and top to bottom in the group: Characteristics of the element - left to right in the period-top to bottom in the group
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Q152

The atomic radius increases in a group due to the continuous increase of . . . . . . . .?

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Q153

The long form of Periodic Table is based on

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Q154

In the modern periodic table, the elements are arranged:

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Q155

The first element of each period has 1 valence electron and the last element of each period . . . . . . . . have electrons. (Except helium)

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Q156

The correct sequence of metallic character of the given elements:

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Q157

The electronic configuration of an element is 2, 8, 1. It is included in . . . . . . . .

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Q158

In Mendeleev's periodic table, the periodic nature of properties of the elements considered on the basis of . . . . . . . .

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Q159

In the modern periodic table in a same group the elements have . . . . . . . . of their atoms.

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Q160

Which of the following elements replaces eca-aluminium in Mandeleev's periodic table?

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