FIRST 30 ELEMENTS

Which of the following set of elements has even atomic numbers?

• V and Li

• Ni and Mg

• Mn and Ti

• O and Cl

Which of the following set of elements has odd atomic number?

• C and Al

• Cr and B

• H and Zn

• K and Co

Which is the 23^rd element?

• Va

• V

• Cr

• Ti

The atomic masses of Cu and Ca are

• 29 and 20

• 40 and 58

• 63 and 40

• 28 and 19

What is the atomic number of Na and Fe?

• 11 and 25

• 12 and 24

• 13 and 27

• 11 and 26

An element has atomic mass of 28. Guess the name of the element.

• Ni

• Si

• P

• Cu

The element which present in between Iron and Nickel is ------

• Cr

• Co

• Mg

• Mn

The element which has two atomic number greater than Si but seven atomic number less than V is -------

• P

• Cl

• Ar

• S

Sc is the symbol for the element

• Scandinavium

• Sandium

• Scandinium

• Scandium

The element which present below Neon in periodic table is -----

• Ar

• Na

• F

• He