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The discovery of the electron (A-level only)

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Question 1

What is the specific charge of a 49Be^{9}_{4}\text{Be}49​Be nucleus?

4.3×107 C kg−14.3 \times 10^7\text{ C kg}^{-1}4.3×107 C kg−1

7.7×107 C kg−17.7 \times 10^7\text{ C kg}^{-1}7.7×107 C kg−1

9.6×107 C kg−19.6 \times 10^7\text{ C kg}^{-1}9.6×107 C kg−1

2.2×108 C kg−12.2 \times 10^8\text{ C kg}^{-1}2.2×108 C kg−1

The discovery of the electron (A-level only) Questions

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  3. /The discovery of the electron (A-level only)