PDF chapter test TRY NOW
a. Rutherford’s alpha-particle scattering experiment led to the discovery of the.
b. Isotopes have samebut different.
c. Neon and chlorine have atomic numbers \(10\) and \(17\), respectively. Their valencies will beand, respectively.
d. The electronic configuration of silicon is and that of sulphur is.
Answer variants:
nucleus
neutrons
\(2,8,7\)
0
2
mass number
protons
1
3
\(2,8,6\)
atomic number
\(2,8,4\)
\(2,8,5\)
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