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प्रश्न
Give two symbols which have been derived from the " Latin names" of the elements.
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उत्तर
Following are the two symbols which have been derived from the “Latin names” of their respective elements: Iron – Ferrum (Fe) and Copper (Cu)-Cuprum.
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संबंधित प्रश्न
State whether the following statement is true or false:
The symbol of element cobalt is CO.
Match the metallic elements – with their correct symbols Metallic elements
| Metallic elements | Symbol |
| (a) Potassium | (1) Ca |
| (b) Sodium | (2) Zn |
| (c) Calcium | (3) Pb |
| (d) Magnesium | (4) Hg |
| (e) Zinc | (5) Cu |
| (f) Aluminum | (6) Au |
| (g) Iron | (7) K |
| (h) Lead | (8) Fe |
| (i) Copper | (9) Al |
| (j) Mercury | (10) Na |
| (k) Silver | (11) Mg |
| (l) Platinum | (12) Pt |
| (m) Gold | (13) Ag |
Match the non-metallic elements – with their correct symbols. Non-metallic elements are:
| Non-Metallic elements | Symbol |
| (a) Carbon | (1) O |
| (b) Chlorine | (2) I |
| (c) Oxygen | (3) Si |
| (d) Phosphorus | (4) C |
| (e) Hydrogen | (5) Cl |
| (f) Nitrogen | (6) P |
| (g) Iodine | (7) F |
| (h) Bromine | (8) H |
| (i) Fluorine | (9) S |
| (j) Silicon | (10) Br |
| (k) Sulphur | (11) N |
Explain the terms ‘chemical formula’.
Give the symbol and the number of atoms of the following elements present in carbon dioxide.
Give the symbol of the following element:
Mercury
State what is meant by the term ‘activity series of metals’.
Select the correct answer to the statement given below:
An element present in the earth’s crust, atmosphere and the human body.
______ of some elements are derived from Latin or Greek names of the elements.
The first letter of a symbol is always written as a ______ letter and the second letter as a ______ letter.
