Monday

September 15, 2014

September 15, 2014

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.

**Answer this Question**

**Related Questions**

college - a certain radioactive isotope has a half life or 850 years.how many ...

math - A 10 kg quantity of a radioactive isotope decays to 3 kg after 17 years. ...

math - A 10 kg quantity of a radioactive isotope decays to 3 kg after 17 years. ...

math - A 10 kg quantity of a radioactive isotope decays to 3 kg after 17 years. ...

math - A 10 kg quantity of a radioactive isotope decays to 3 kg after 17 years. ...

math - A 10 kg quantity of a radioactive isotope decays to 3 kg after 17 years. ...

math - A 10 kg quantity of a radioactive isotope decays to 3 kg after 17 years. ...

math - A 10 kg quantity of a radioactive isotope decays to 3 kg after 17 years. ...

Differential Equations - Model radioactive decay using the notation t = time (...

MATH help - a certain radioactive isotope has a half life of approx 1,300 years...