大学职业资格刷题搜题APP
创建自己的小题库
搜索
【单选题】
放射性同位素钬
的原子核内的中子数与核外电子数之差是 [ ]
A.
99
B.
67
C.
32
D.
166
相关题库：原子核的组成及组成粒子间的关系题库
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
反馈
收藏
举报
参考答案：
举一反三
【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 ...
A.
extremes
B.
extracts
C.
terminals
D.
radicals
【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 ...
A.
thus
B.
however
C.
so
D.
but
【单选题】我国在2007年发射了一颗绕月探测卫星，其任务之一是寻找一种新能源--氦3。氦3的原子核是由一个中子和两个质子构成的，其原子的核外电子数为[ ]
A.
1
B.
2
C.
3
D.
6
相关题目：
【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 ...
A.
extremes
B.
extracts
C.
terminals
D.
radicals
【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 ...
A.
thus
B.
however
C.
so
D.
but
【单选题】我国在2007年发射了一颗绕月探测卫星，其任务之一是寻找一种新能源--氦3。氦3的原子核是由一个中子和两个质子构成的，其原子的核外电子数为[ ]
A.
1
B.
2
C.
3
D.
6
参考解析：
题目纠错 0
发布
