what happens to the electron cloud at very high atomic number, when the innermost electron would, using a non-relativistic model, be calculated to exceed the speed of light

I can only tell you that when a atomic level is hig it as more electro around the electron cloud and it means that it is harder to be unstable

answer: e.   sour taste

explanation: acids are those substances which dissociates in water to give ions. as they dissociate to give ions, they act as electrolytes and thus are electrically conductive. acids are sour in taste. example: hcl

bases are those substances which dissociates in water to give ions or accepts ions. as they dissociate to give ions, they act as electrolytes and thus are electrically conductive. bases are bitter in taste. bases are slippery in nature.

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