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प्रश्न
Fill in the blank
An ion with positive charge is called ______
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उत्तर
An ion with positive charge is called cation.
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संबंधित प्रश्न
ANSWER IN DETAIL
State the postulates of the Dalton’s atomic theory.
Write the names of the elements present in the following compound.
Common salt
Give the charge and the mass of an electron, proton and neutron present in an atom ?
What is the maximum number of electrons present in:
1. first shell
2. second shell
3. third shell and
4. fourth shell
Give two examples for each of ionic and covalent bond.
Write electronic configuration of oxygen, fluorine, sodium, silicon, argon.
How did Neils Bohr visualise the atom ?
Fill in the following blanks with suitable words :
In water, the proportion of oxygen and hydrogen is .............. by mass.
What is an atom ? How do atoms usually exist ?
Find the mass of 2 moles of nitrogen atoms.
What is the contribution of the following in atomic structure?
Maharshi Kanada
Draw the electron dot structure of this compound.
A radical take part – unsplit in a chemical reaction and retains its identity in reactions.
With reference to the radical –
- ammonium
- bisulphate
- carbonate
state the group of atoms present in each radical.
Select the correct answer to the statement given below:
The smallest particle of a substance – capable of independent existence and which retains the characteristics of the substance.
Select the correct answer to the statement given below:
Imaginary path around the nucleus of an atom in which electrons revolve.
The electronic structure [configuration] of fluorine can be written as 2, 7. In a similar way give the electronic configuration of aluminium
A compound containing one atom of carbon and two atoms of oxygen is ______.
Define the following term with an example.
Compound
Write any two observations which support the fact that atoms are divisible.
Lead is also known as plumbum.
