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Artyom0805 [142]
4 years ago
6

Lead's symbol on the periodic table, pb, derives from the same latin word that gives us "______".

Chemistry
1 answer:
nignag [31]4 years ago
5 0
Plumbum. The latin word for liquid silver.
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4 years ago
The element lead (pb) consists of four naturally occurring isotopes with atomic masses 203.97302,205.97444,206.97587, n 207.9766
Marina CMI [18]

The method of determining the most common isotope of lead is by determining the average atomic mass. The formula for determining the average atomic mass is:

average atomic mass = \Sigma {percent abundance}\times {atomic mass}

Substituting the values in the formula:

average atomic mass = \frac{{203.97302}\times {1.4}+{205.9744}\times {24.1}+{206.97587}\times {22.1}+{207.97663}\times {52.4}}{100}

average atomic mass = \frac{285.562228+4963.984004+4574.166727+10897.975412}{100}

average atomic mass = \frac{20721.688371}{100} = 207.22 amu

The most common isotope of lead is:

Lead - 207.22 amu

The atomic symbol of lead is Pb. The atomic number of Pb is 82.

So, the the most common isotope of lead can be written as:

_{207.22}^{82}Pb and Lead - 207.22 amu.

3 0
3 years ago
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