Which of the following represent the correct Element and Symbol Pair?
(i) Cobalt –CO
(ii) Copper-Cu
(iii)Potassium- K
(iv) Calcium-C
(v) Silicon-Sl
(vi) Silver- Ag
(vii)Barium-Ba
(viii)Iron-Ir
Write metal, non-metal, noble gas or compound for the following :
(i) Chlorine :
(ii) Calcium carbonate :
(iii) Magnesium :
(iv) Potassium :
(v) Argon :
(vi) Sodium chloride :
(vii) Carbon dioxide :
(vii) Hydrogen
(ix) Silicon
(x) Lead