MCQs: Hydrogen is a diatomic gas and its chemical formula is
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MCQs: The second shell with the second energy level is known as
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MCQs: As the unstable atoms break up into smaller atoms,
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MCQs: The symbol of 'Carbon' is
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MCQs: Mass number tells us the number of
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MCQs: Unstable atoms are radioactive so we call them
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MCQs: The atomic number of 'neon' is
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MCQs: The 'chlorine' ion has
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MCQs: Scientists name isotopes by putting
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MCQs: Nucleus' is surrounded by
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MCQs: The orbits on which electrons revolve around the nucleus are called
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MCQs: Ion with positive charge is known as
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MCQs: The positive electrical charges of protons are balanced by
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MCQs: The smallest atom in 'periodic table' yet found is
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MCQs: The number of neutrons in carbon-13 is
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MCQs: To multiply multiple elements with a number we use
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MCQs: The ionic chemical formula of magnesium is
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MCQs: Nuclear batteries that produce small amount of current have
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MCQs: Third shell with third energy level is known as
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MCQs: Nuclear energy is released all at once in
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