Advertisements
Advertisements
प्रश्न
Give the symbol and the number of atoms of the following elements present in water.
Advertisements
उत्तर
Water(H2O)
| Elements | Symbols |
| (Hydrogen) | H |
| [Oxygen (oxide)] | O |
No. of atoms of this element present
2 atoms of - H, 1 atom of - O
संबंधित प्रश्न
Write the names of following elements Na, C, Kr, U, Ra, Fe, Co.
Name the elements represented by the following symbols :
Hg, Pb, Au, Ag, Sn
The symbol of a metal element which is used in making thermometers is :
State which element exists in the highest percentage in earth’s crust.
State the type of element for the following:
Silicon
State the type of element for the following:
Lead
State the type of element for the following:
Aluminium
State the valency of the following metallic element and write symbol with the valency
Calcium
State the valency of the following metallic element and write symbol with the valency
Chromium
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).
Phosphate
