Hợp chất của A với H là :
\(AH_n\left(1\le n\le7\right)\)
Bạn xét từng TH nha:
\(AH\Leftrightarrow\%A=\frac{M_A}{M_A+1}\cdot100=97.26\Rightarrow M_A=35.5\)\(\Rightarrow Cl\)(tm)
\(AH_2\Leftrightarrow\%A=\frac{M_A}{M_A+2}\cdot100=97.26\Rightarrow M_A=71\left(l\right)\)
\(AH3\Leftrightarrow\%A=\frac{M_A}{M_A+3}\cdot100=97.26\Rightarrow M_A=106.49\left(l\right)\)
\(AH_4\Leftrightarrow\%A=\frac{M_A}{M_A+4}\cdot100=97.26\Rightarrow M_A=141.99\left(L\right)\)
\(AH_5\Leftrightarrow\%A=\frac{M_A}{M_A+5}\cdot100=97.26\Rightarrow M_A=177.48\left(L\right)\)
\(AH_6\Leftrightarrow\%A=\frac{M_A}{M_A+6}\cdot100=97.26\Rightarrow M_A=212.98\left(L\right)\)
\(AH_7\Leftrightarrow\%A=\frac{M_A}{M_A+7}\cdot100=97.26\Rightarrow M_A=248.47\left(L\right)\)
Vậy A là nguyên tố Cl
