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प्रश्न
Write the names of `"FeS"` compounds :
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उत्तर
`"FeS"` - Iron sulphide
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संबंधित प्रश्न
TRUE \ FALSE
Elements having a tendency to accept electrons are called metals
WRITE SHORT ANSWER
What is radioactivity?
ANSWER IN DETAIL
State the postulates of the Dalton’s atomic theory.
ANSWER IN DETAIL
Enlist the features of Bohr’s model of an atom. How did he correct the Rutherford’s model ?
Write the names of the elements present in the:-
Glucose
Write the names of `"Na"_3"PO"_4` compounds :
Define: Mass number
Define: Relative atomic mass
What are orbits or shells ?
Define: Covalent bond
Who originated the word ‘atom’ ?
State Dalton’s atomic theory.
Name the particle or particles you would expect to find in :
The nucleus of an atom
An atom has 13 protons and 14 neutrons.
What is the atomic mass of the atom ?
Draw diagrams representing the atomic structures of the following:
- Sodium atom
- Chlorine ion
- Carbon atom
- Oxygen ion
State true or false. If false, correct the statement.
An atom is electrically neutral.
In the nucleus of `""_20"Ca"^40`, there are ______
Does the solubility of a substance change with temperature? Explain with the help of an example.
An atom of Oxygen (O) and two atoms of hydrogen (H.) combine to form a molecule of ______.
What are the 3 most abundant atoms on the earth?
