Advertisements
Advertisements
प्रश्न
Fill in the blank:
Dalton used symbol _____ for oxygen and _____ for hydrogen.
Advertisements
उत्तर
Dalton used symbol [⚪] for oxygen and [☉] for hydrogen.
APPEARS IN
संबंधित प्रश्न
Write the names of following elements Na, C, Kr, U, Ra, Fe, Co.
What is the significance of the symbol of an element ? Explain with the help of an example.
An element which can exhibit valencies of 2, 4 and 6 can be :
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 |
Give the symbol of the following element:
Platinum
State the type of element for the following:
Lead
State whether the following ion or radical given below of a non-metallic element exhibits valency: 1–, 2– or 3–. (write the ion or radical with the correct valency).
Zincate
Name three metals whose symbols are derived: from their Latin names.
What is the expansion of IUPAC.
Write a note on Greem symbols.
