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प्रश्न
What is meant by atomicity? Name the diatomic element.
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उत्तर
The number of atoms of an element that join together to form a molecule of that element is known as its atomicity.
Diatomic molecules: H2, O2, N2, Cl2
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संबंधित प्रश्न
An atom of an element is denoted by a “symbol”. Explain the meaning of the term ‘symbol’. State a reason for representing the following element by its symbol.
Hydrogen by ‘H’
An atom of an element is denoted by a “symbol” Explain the meaning of the term ‘symbol’. State a reason for representing the following element by its symbol.
Helium by ‘He’
An atom of an element is denoted by a “symbol” Explain the meaning of the term ‘symbol’. State a reason for representing the following element by its symbol.
Copper by ‘Cu’
Give the symbol and the number of atoms of the following elements present in sodium chloride.
Elements are mainly classified into metals and non-metals. State six properties of metals which differ from non-metals.
Give the symbol of the following element:
Arsenic
Give the symbol of the following element:
Lead
State the type of element for the following:
Mercury
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).
Hydroxide
What is the expansion of IUPAC.
