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February 28, 2015

February 28, 2015

Posted by **penelope** on Monday, July 12, 2010 at 1:03pm.

- chemistry -
**DrBob222**, Monday, July 12, 2010 at 1:51pm_{52}^{130}Te ==>_{-1}^{o}e + X

The subscripts must add up and the superscripts must add up. I have shown the beta particle (an electron) with -1 charge and 0 mass. When you know the atomic number, place it at the lower left hand of X as a subscript and the mass number will be a superscript at the top left. Then look on the periodic table and identify the element X. It's tough to write these subscripts and superscripts so if I've goofed on one of them I will redo it.

- chemistry -
**DrBob222**, Monday, July 12, 2010 at 1:52pmIt look ok to me.

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