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Chemistry : Periodic Table


Answer the following question(s) by choosing appropriate options.

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Multiple choice | Match the Columns

Your Performance  

1.

Magnesium has an atomic number of

  10

  16

  12

  24

  Half-n-half Clue
 

2.

The law that "the physical and chemical properties of elements are periodic functions of their atomic weights" was given by

  Bohr

  Moseley

  Mendeleev

  Lothar Meyer

  Half-n-half Clue
 

3.

The horizontal rows in a periodic table are called

  Periods

  Groups

  Atomic Structures

  Lanthanides

  Half-n-half Clue
 

4.

The vertical rows in a periodic table are called

  Noble Gases

  Periods

  Alkali Metals

  Groups

  Half-n-half Clue
 

5.

The element with atomic weight 14 is

  Boron

  Nitrogen

  Oxygen

  Carbon

  Half-n-half Clue
 

6.

The least reactive elements of the periodic table are

  Transition Metals

  Noble Gases

  Alkaline Earth Metals

  Alkali Metals

  Half-n-half Clue
 

7.

The first element in the modern periodic table is

  Helium

  Lithium

  Hydrogen

  Oxygen

  Half-n-half Clue
 


 
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