Why are two balls connected by a spring a good model for two
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Why are two balls connected by a spring a good model for two atoms connected by a chemical bond?
A.If the two atoms get closer together than the equilibrium interatomic distance,they repel each other.
B.If the two atoms get farther apart than the equilibrium interatomic distance,they attract each other.
C.Each spring represents a real microscopic coiled metal wire that connects two adjacent atoms.
D.The magnitude of the force one atom exerts on another is proportional to the stretch or compression of the bond between them.
已知选A+B,A+B+C,A+B+C+D,C+D,C,D这样选择都不对.给理由.
A.If the two atoms get closer together than the equilibrium interatomic distance,they repel each other.
B.If the two atoms get farther apart than the equilibrium interatomic distance,they attract each other.
C.Each spring represents a real microscopic coiled metal wire that connects two adjacent atoms.
D.The magnitude of the force one atom exerts on another is proportional to the stretch or compression of the bond between them.
已知选A+B,A+B+C,A+B+C+D,C+D,C,D这样选择都不对.给理由.
![Why are two balls connected by a spring a good model for two](/uploads/image/z/19989280-64-0.jpg?t=Why+are+two+balls+connected+by+a+spring+a+good+model+for+two)
a是正确的,两原子太接近即遭受排斥
b是正确的,理由与上面类似,太远即吸回来
c是错误的,弹簧不能代表真实存在的化学键
d是正确的,所受力的大小与弹簧被拉伸或者压缩成正比,f=kx,x为型变量
这个题目虽然看似和化学联系起来,实际上考查的还是物理上面关于弹簧的知识.
再问: 化学键是?microscopic coiled metal wire? 这个是化学键的意思吗? 而且为什么不能代表?
再答: 不好意思,microscopic coiled metal wire这个不是化学键的意思,这是“微小的金属线圈”,这个选项的大意是“弹簧可以代表真实存在的连接两个原子的微小金属线圈”,而两个原子之间实际上是没有任何实物联系着他们,都是靠原子之间的作用力联系着的。
b是正确的,理由与上面类似,太远即吸回来
c是错误的,弹簧不能代表真实存在的化学键
d是正确的,所受力的大小与弹簧被拉伸或者压缩成正比,f=kx,x为型变量
这个题目虽然看似和化学联系起来,实际上考查的还是物理上面关于弹簧的知识.
再问: 化学键是?microscopic coiled metal wire? 这个是化学键的意思吗? 而且为什么不能代表?
再答: 不好意思,microscopic coiled metal wire这个不是化学键的意思,这是“微小的金属线圈”,这个选项的大意是“弹簧可以代表真实存在的连接两个原子的微小金属线圈”,而两个原子之间实际上是没有任何实物联系着他们,都是靠原子之间的作用力联系着的。
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