Write the symbols for these elements: cadmium.

Write the symbols for these elements: calcium.

Write the symbols for these elements: Gold .

Write the symbols for these elements: Iron.

Write the symbols for these elements : Oxygen .

Write the symbols for the following elements and classify them as solid, liquid and gas. Aluminum, Carbon, Chlorine, Mercury, Hydrogen and Helium.

(i) Draw the symbol for some elements as proposed by Dalton.

The element with atomic number 120 has not been discovered so far. What would be the IUPAC name and the symbol for this element ? Predict the possible electronic configuration of this element.

Describe the different ways in which we can write the symbols of elements. Give appropriate examples.

Write Lewis symbols for the following atoms and ions: S and S^(2-) , Al and Al^(3+) , H and H^(-)