science question..help me ,please!
题目
science question..help me ,please!
The ion of chlorine can be write as Clˉ.Which of the following is a correct statement about the negatively charged chloride ion?
A.There are more protons than electrons
B.There are more protons than neutrons
C.There are more electrons than neutrons
D.There are more electrons than protons
答案
The ion of chlorine can be write as Clˉ.Which of the following is a correct statement about the negatively charged chloride ion?(D)A.There are more protons than electronsB.There are more protons th...
举一反三
已知函数f(x)=x,g(x)=alnx,a∈R.若曲线y=f(x)与曲线y=g(x)相交,且在交点处有相同的切线,求a的值和该切线方程.
我想写一篇关于奥巴马的演讲的文章,写哪一篇好呢?为什么好
最新试题
热门考点
- 小明在计算乘法算式时将一个因数5.62误看成562,所以计算的结果比原来正确的结果大1001.484另一个因数是多
- But for the fact that China _ also affected by the global economic crisis,we _fewer unemployed worke
- 泛亚铁路修建的意义
- 如图,在等边梯形ABCD中,AD//BC,AD=3,BC=5,AC、BD相交于点O,且∠BOC=60°.若AB=CD=x,则x的取值范围是
- 庄子行于山中叙述了哪两件日常生活小事
- 一个物体经过凸透镜成像,在距离凸透镜30厘米的光屏上得到一个放大的实像,此凸透镜的焦距可能是()
- 作文 有趣的发现 怎样写开头
- 有9袋水果糖,其中8袋重500g,另一袋不是500g,但不知道比500g轻还是重.用天平称,至少要称几次才能找出这袋
- 教师职业道德修养的内容
- 送友人 李白 的意思