Write down the symbols of the elements you know.

Write down the symbols for the following elements : antimony, iron, gold, silver, mercury, lead, sodium.

A part of periodic table is shown in the following figure Write the symbol of the element Q'.

Define Symbol of an element.

Write the name and symbol of the element from the description. The most electronegative atom.

Write the name and symbol of the element from the description. The most reactive nonmetal.

In the following table, six elements A, B, C, D, E and F (here letters are not the usual symbols of the elements) of the modern periodic table with their atomic numbers are given. Write the electronic configuration of C and E.

Write down properties of teflon.

Answer the following questions: Write symbols of the following elements and the radicals obtained from them, indicate the charge on the radicals. Mercury, potassium, nitrogen, copper, sulphur, carbon, chloride, oxygen.