Write the name and deduce the atomic number of the following element(i) The second alkali metal(ii) The fourth noble gas(iii) The third halogen(iv)The first transilation element

Write the name and deduce the atomic number of the following element(i

1.	Write the name and deduce the atomic number of the following element(i) The second alkali metal(ii) The fourth noble gas(iii) The third halogen(iv)The first transilation element
Answer» Solution :(i)SODIUM (Z=11) (II) KRYPTON (Z=36) (iii) BORMINE (Z=35) (iv)SCANDIUM (Z=21)