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Questions and Answers
Who is credited with discovering the law of conservation of mass?
What does the Greek term 'atom' mean?
According to John Dalton's atomic theory, what is true about all matter?
What did Democritus propose about matter that differed from Greek philosophers?
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Which scientist proposed that compounds consist of elements combined in small whole-number ratios?
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According to the law of constant composition, what does a given chemical compound always contain?
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What is the charge of an electron?
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What is atomic mass on the periodic table a weighted average of?
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Which subatomic particle is located in the nucleus and has a charge of +1?
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In the context of silicon, which isotope has the highest natural abundance?
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For gallium, what is the average atomic mass?
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What makes up most of an atom's mass?
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Which isotopes of gallium are naturally occurring?
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What defines an element?
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Which term describes the number of protons and neutrons in an atom?
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How is the natural abundance of an isotope calculated?
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What term is used to refer to atoms of the same element with different mass numbers?
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How can isotope ratios be utilized according to the text?
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What is a significant forensic application mentioned in the text?
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How can the year of birth be determined using isotopes from tooth enamel?
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What technique is mentioned for measuring isotopes in a sample?
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Why do chemists treat most elements as consisting of 'averaged' atoms?
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What phenomenon led to a method for dating samples based on isotopes, as mentioned in the text?
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