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प्रश्न
Fill in the blank:
Symbolic expression for a molecule is called _____.
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उत्तर
Symbolic expression for a molecule is called molecular formula.
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संबंधित प्रश्न
Name the element used as a standard for atomic mass scale.
The formula of the sulphate of an element M is M2(SO4)3
Write the formula of its
Acetate
Match the noble gases – with their correct symbols:
| Noble gases | Symbols |
| (a) Helium | (1) Ar |
| (b) Neon | (2) Xe |
| (c) Argon | (3) Rn |
| (d) Krypton | (4) He |
| (e) Xenon | (5) Kr |
| (f) Radon | (6) Ne |
Give the names and symbols of the first twenty elements of the periodic table.
Give the symbol of the following element:
Silicon
State the type of element for the following:
Mercury
State the type of element for the following:
Copper
State the type of element for the following:
Radon
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).
Plumbite
Symbol of mercury is
