Periodic Classi...

Elements having same valence electrons are placed in same group but there is an exception with-

Which element was discovered after Mendeleev gave the periodic table?

An element with atomic no 3 combines with another element with atomic number 17, What would be the formula of the compound?

Horizontal rows in a periodic table are called-

Which element has two shells both of which are completely filled with electrons?

Answer the questions on the basis of the following table, Which element is the most metallic?

Answer the questions on the basis of the following table, Which atom is the largest?

Answer the questions on the basis of the following table, Which element is highly electronegative?

Answer the questions on the basis of the following table, name the family of H, A, C.