4. Atoms and Elements
Subatomic Particles (Simplified)
4. Atoms and Elements
Subatomic Particles (Simplified)
01:25
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- 객관식
According to the table above, how many electrons are needed to have a combined mass of 1.0465 x 10-25 kg?
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How many atoms are contained in 0.230 g of sodium, Na? The mass of one sodium atom is 22.99 amu.
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