SAT2化学题One reason why certain isotopes have an unstable nucleus is because the number of A质子比中子多B电子比质子多C中子比电子多D质子比电子多E中子比质子多答案是英文的,

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SAT2化学题One reason why certain isotopes have an unstable nucleus is because the number of A质子比中子多B电子比质子多C中子比电子多D质子比电子多E中子比质子多答案是英文的,
SAT2化学题
One reason why certain isotopes have an unstable nucleus is because the number of
A质子比中子多
B电子比质子多
C中子比电子多
D质子比电子多
E中子比质子多
答案是英文的,

SAT2化学题One reason why certain isotopes have an unstable nucleus is because the number of A质子比中子多B电子比质子多C中子比电子多D质子比电子多E中子比质子多答案是英文的,
应该是e中子比质子多吧,中子更易衰变成质子和电子些.首先原子核与电子无关,bcd排除,再自己举一下例子,氢的核素氕比氘和氚要稳定些,碳12比碳14稳定些,重核中中子往往比质子多且重核通常不稳定,所以中子比质子多导致原子核不稳定.