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प्रश्न
Draw the electron dot structure of this compound.
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संबंधित प्रश्न
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How are isobars different from isotopes ?
Write the names of the elements present in the :-
Sulphuric acid
Fill in the blank
A charged particle is called an _____
Fill in the blank
An _______ is electrically neutral.
Is it possible to see atoms these days ? Explain your answer.
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?
An atom of an element X may be written as `""_9^4"X"`
(a) What does the figure 9 indicate?
(b) What does the figure 4 indicate?
(c) What is the number of protons in atom X?
(d) What is the number of neutrons in atom X?
(e) What is the number of electrons in atom X?
(f) How many electrons are there in the outermost shell of an atom of element X?
(g) Write the symbol of ion formed by an atom of element X.
The basic unit of matter is ______.
Define the following term with an example.
Metalloid
______ is a substance that is made up of three oxygen atoms chemically combined.
