3) Rn-222 is the most stable isotope of radon. If it takes 9.74 days for a sample of Rn-222 to decay to 17%
of its initial mass, what is the half-life of Rn-222?

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answer; natural resources;

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.