1. Ernest Rutherford first transmuted one element into another by the bombardment of nitrogen-14 with alpha particles resulting in oxygen-17 being produced. What particle was emitted in that process?
A. Hydrogen nucleus
B. a nuetron
C. an alpha-particle
D. a beta-particle
2. Given the nuclear equation: H + X -> Li +He. The particle represented by X is
A. 9Li
B. 9Be
C. 10Be
D. 10C
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3. Atoms of one element are converted to atoms of another element through
A. Fermentation
B. Oxidation
C. Polymerization
D. Transmutation
4. All atoms of a given element have the same_____.
A. atomic mass
B. mass number
C. number of neutrons
D. atomic number
5. In the symbol, xC x is_____.
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A. the number of neutrons
B. the atomic number
C. the mass number
D. the isotope number​