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प्रश्न
Write the names of the elements present in the:-
Glucose
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उत्तर
Glucose : Carbon, hydrogen, oxygen.
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संबंधित प्रश्न
WRITE SHORT ANSWER
Define an ionic compound.
Define:- Atom
Write the names of the elements present in the following compound.
Common salt
Write the names of the elements present in the:-
Ammonia
Write the names of the elements present in the:-
Acetic acid
Fill in the blank
An ion with positive charge is called ______
Define: Relative atomic mass
Name the particle or particles you would expect to find in :
The nucleus of an atom
An atom has 13 protons and 14 neutrons.
How many electrons would be present in this atom ?
An atom has 13 protons and 14 neutrons.
What is the atomic mass of the atom ?
Fill in the blank
An _______ is electrically neutral.
Name the three subatomic particles present in an atom.
What value has been given to the mass of this reference atom ?
An atom of element E contains 3 protons, 3 electrons and 4 neutrons :
(a) What is its atomic number?
(b) What is its mass number?
(c) Write the electronic configuration of the element E.
(d) State whether element E is a metal or non-metal. Why?
(e) What type of ion, cation or anion, will be formed by an atom of element E? Why
(f) Write the symbol of the ion formed by an atom of element E.
(g) What could element X be?
Deduce from the datum provided.
| Datum | To deduce |
| \[\ce{_11^23Na}\] | Neutron number |
| \[\ce{_6^14C}\] | Mass number |
| \[\ce{_17^37 Cl}\] | Proton number |
Define – Atom.
Define the following term with an example.
Metalloid
Give the salient features of “Modern atomic theory”.
______ is a substance that is made up of three oxygen atoms chemically combined.
