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Write the appropriate symbol for each of the following isotopes: (a) $Z=74, A=186 ;$ (b) $Z=80$ $A=201$

(a) $Z=74, \mathrm{A}=186: \begin{array}{l}186 \\ 74\end{array} \mathrm{W}_{-} \mathrm{p}=74, \mathrm{n}=186-74=112, \mathrm{c}=74$(b) $\quad Z=80, A=201: \frac{201}{80} \mathrm{Hg}_{-} \mathrm{p}-11, \mathrm{n}=201-80-121, \mathrm{c}=80$

Chemistry 101

Chapter 2

Atoms, Molecules, and Ions

Atoms, Molecules and Ions

Drexel University

University of Maryland - University College

University of Kentucky

University of Toronto

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01:29

Write the appropriate symb…

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01:20

So now we're gonna right the nuclear seeing both war, these two asshole tops. We are given that Z number. Which is what? Yes, the atomic number is 74 mass member A is 1 86 So we use the periodic table to look happy. Elements that's have a comic number off 74 on 74 is what? This is a wolfram war from elements, and it has an atomic symbol off w So we're at W and that, uh, we need to write toothy atomic member. It's about two and a mass number on the top. Lexus. Okay. And for part B, it has, um, a atomic number off 80. So take a look. Has a periodic table. We have this H g, which is McCoury. So atomic number at the bottom and mass number on the top. That's the new cruising boat we're looking for

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