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【单选题】
下列有关同位素的叙述中,正确的是( )
A.
质子数不同，质量数相同，化学性质也几乎相同
B.
质子数相同，质量数相同，化学性质也几乎相同
C.
质子数相同，质量数不同，化学性质不同
D.
质子数相同，质量数不同，化学性质几乎相同
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题目标签：同位素
参考答案：
参考解析：
刷刷题刷刷变学霸
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【单选题】Mars fascinates scientists because of its similarity to Earth, and it fascinates the public because our myth of "Martians" is a vision of life beyond Earth. The Mars 62 continues with the launch of ...
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