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Chem Exam Ch.3
Final Exam
Question | Answer |
---|---|
who discovered the ncleus by bonbarding gold foil with positively charged particles | Rutherford |
Rutherfords experiments led to the disovery of the | nucleus |
Experiments with cathode rays led to the disovery of the | electron |
organic chemistry si the study of | carbon containing compounds |
the fact NaCl always consist of 39.34% Na and 60.66% Cl is what law | law of definite proportions |
the smallest unit of an element that can exit alone or in combination with other such particles is an | atom |
the disovery fo the electron resulted from experiments using | cathode rays |
a positively charged particle with mass 1.673X10-23 is a | proton |
the atomic number of oxygen 8 indicates that there are eight | protons in the nucleus of an oxygen |
all atoms of the same element have the same | atomic number |