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प्रश्न
Name the following:
Two atoms having the same number of protons and electrons but different number of neutrons.
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उत्तर
Hydrogen and carbon
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संबंधित प्रश्न
Elements X, Y, and Z have atomic numbers 6, 9 and 12 respectively. Which one forms an anion?
Element X is a metal with a valency 2; Y is a non-metal with a valency 3.
(a) Write an equation to show how Y forms as ion
(b) If Y is a diatomic gas, write an equation for the direct combination of X and Y to form a compound.
How are X-rays produced?
Why do `""_17^35"CI"` and `""_17^37"CI"` have the same chemical properties? In what respect do these atoms differ?
Name the following:
Metal with valency 2
Name the following:
The shell closest to the nucleus of an atom
Choose the correct option
Which of the following is the correct electronic configuration of potassium?
Element M forms a chloride with the formula MCl2 which is solid with a high melting point. What type of bond is in MCl2. Write the formula of the compound when M combines with sulphur, oxygen, and nitrogen.
Identify the following reaction as either oxidation or reduction:
O + 2e- → O2-
______ theory explains the formation of molecules.
