Horizontal rows of periodic table are ca...

Horizontal rows of periodic table are called

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periods

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Elements in the first column of the periodic table are called alkali metals. These metals have:

State true or false: The elements of group 17 of the periodic table are called halogens.

The horizontal rows in Mendleev's table were called :

What were the 12 horizontal rows known in the periodic table prepared by Mendeleev ?

Vertical columns of periodic table are known as

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With reference of first three periods of the periodic table. Metalloid in 3rd period

Write the names given to the vertical columns and horizontal rows in the Modern Periodic Table. How does the metallic charcter of elements very on moving down a vertical column ? How does the size of atomic radius vary on moving left to right in a horizontal row ? Give reason in pupport of your answer in the above two cases.

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ICSE-PERIODIC PROPERTIES OF ELEMENTS -QUESTIONS FOR PRACTICE ( Fill in the blanks by using correct word/term given in the brackets and rewrite the complete sentence in your notebook.)

Horizontal rows of periodic table are called
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In the periodic table, the vertical columns are called (periods/group...
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The number of electrons in the outermost shell of the atom of an eleme...
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Period 1 contains elements. (two/eight)
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The elements in a period have valencies. (same/different).
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In the modern periodic table, elements are classified according to the...
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Elements in the same group have chemical properties. (similar/differe...
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As we move across a period from left to right, metallic character (de...
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As we move across a period from left to right, nonmetallic character (...
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The atomic size of lithium is than that of sodium. (greater/smaller).
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Properties of the elements mainly depend on their . (electronic config...
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Fluorine is electronegative than lithium. (more/less)
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Atomic size decreases in a of the periodic table as the atomic number ...
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In a group, the atomic size from top to bottom. (increases / decreases...
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Ionisation energy decreases in a as atomic number increases. (group/p...
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Ionisation energy of sodium is than that of potassium. (more/less)
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If an element of period 2 has one electron in its outermost shell, the...
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The element at the bottom of a group would be expected to show metalli...
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Properties of the elements are a periodic function of their . (atomic...
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The ionisation potential of potassium is that of sodium. (gt//lt)
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