Concept explainers
To Find:The number of neutrons that lead-207 consists.
Answer to Problem 10STP
125
Explanation of Solution
Introduction:
Lead is an element in the periodic table indicated with the symbol Pb. Itsatomic number is 82. Naturally, it is a heavy, soft and malleable metal.
The element lead has four stable isotopes having mass numbers are 204, 206, 207, and 208. All these isotopes are having the same number of protons that is 82.
The lead-207 is an isotope of lead which has 82 protons and 125 neutrons.
[lead-207=82 (protons)+125 (neutrons)]
Conclusion:
The lead-207 isotope has 125 neutrons.
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