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Asample of radium-226 will decay 1/4 of its original amount after 3200years. what is the half-life of radium-226?
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Which type of orbits are found in the principal energy level n = 2 a - s b - s, f c - s, d d - s, p e - s, p, d
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In which situation can a mixture always be called a solution
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The actual temperature of a room is 40 degrees Celsius. The
tested temperature in degrees Celsius...
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