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प्रश्न
Atoms of different elements having ______ mass numbers, but ______ atomic numbers are called isobars.
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उत्तर
Atoms of different elements having the Same mass numbers, but different atomic numbers are called isobars.
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संबंधित प्रश्न
TRUE \ FALSE
Elements having a tendency to accept electrons are called metals
WRITE SHORT ANSWER
Define an ionic compound.
Fill in the blank
An ion with negative charge is called _______
What does an atom consist of ? Explain.
Who originated the word ‘atom’ ?
A certain particle ‘X’ has 17 protons, 18 electrons and 20 neutrons.
What is the charge on the particle ?
Write the full form of IUPAC.
The electronic configuration of an element Z is 2, 8, 8.
(a) What is the atomic number of the element?
(b) State whether element Z is a metal or a non-metal.
(c) What type of ion (if any) will be formed by an atom of element Z? Why?
(d) What is special about the outermost electron shell of the atom of this element?
(e) Give the name and symbol of element Z.
(f) Name the group of elements to which Z belongs.
The most abundant type of atom is the universe is ______.
The first scientific theory about atoms was given by J J. Thomson.
