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April 18, 2014

April 18, 2014

Posted by **Shay** on Wednesday, September 26, 2012 at 10:23am.

Express your answer as a nuclear equation.

- chemistry -
**DrBob222**, Wednesday, September 26, 2012 at 3:04pmnumber preceding symbol = atomic number(a subscript)

number after symbol = mass number(a superscript)

In nuclear equations the subscripts add up and the superscripts add up.

98Cf249 + 8O18 ==> nXm + on1 + on1 + on1 + on1.

So your job is to determine n, X, and m.

Remember the numbers must add up on both sides to the same thing.

For preceding number (the subscripts).

98 + 8 = n + 0 + 0 + 0 + 0 so n = 106

For number after the symbol (superscripts)

249 + 18 = m + 1 +1 +1 +1

m = 249 + 18 - 4 = 263

Now look on the periodic table and identify element X, element # 106. That's Sg. So the equation, in full, is

98Cf249 + 8O18 ==> 106Sg263 + 4 on1.

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