What is the atomic mass of lead-204?
What is the atomic mass of lead-204?
203.973 043
Assigning the aforementioned lead atomic weights as the lower and upper bounds of the interval, the standard atomic weight of lead is [206.14, 207.94]….Lead.
| Isotope | Atomic mass (Da) | Isotopic abundance (amount fraction) |
|---|---|---|
| 204Pb | 203.973 043(8) | [0.0000, 0.0158] |
| 206Pb | 205.974 465(8) | [0.0190, 0.8673] |
How many electrons does lead-204?
The mass number 204 – 82 protons = 122 neutrons. From the charge, we know that the cation has 2 more protons than electrons, so there are 82 protons – 2 = 80 electrons.
What isotope has a mass number of 204?
Isotopes of thallium
| Isotope | ||
|---|---|---|
| abundance | half-life (t1/2) | |
| 203Tl | 29.5% | stable |
| 204Tl | syn | 3.78 y |
| 205Tl | 70.5% | stable |
How many neutrons are in lead Pb isotope with an atomic mass of 204?
The notation “lead-204” means the isotope of lead that has a mass number of 204. Since lead has 82 protons, the number of neutrons in an atom of lead-204 is 204-82=122. Similarly, lead-206 has 124 neutrons, lead-207 has 125 neutrons and lead-208 has 126 neutrons.
What is the symbol for lead?
Pb
Lead/Symbol
What leads atomic mass?
207.2 u
Lead/Atomic mass
What is Pb 82?
KERRY LAMB. Lead has atomic symbol Pb and atomic number 82. It is located towards the bottom of the periodic table, and is the heaviest element of the carbon (C) family.
Is lead-210 radioactive?
Lead-210, an unstable (radioactive) isotope of Pb, has in the last few decades been widely used for dating environmental records in lake sediments and peat bogs13, for tracing soil erosion within a catchment, and assessing sediment distribution within a lake basin (cf14,15).
What does TL 204 decay into?
Tl-204 disintegrates 97.08 (13)% by beta minus emission and 2.92 (13)% by electron capture transition to the ground states of Pb-204 and Hg-204, respectively.
Is lead 204 stable?
Lead 204 Metal (Lead-204) is a stable (non-radioactive) isotope of Lead. It is both naturally occurring and a produced by fission. Lead 204 Metal is one of over 250 stable Metallic isotopes produced by American Elements for biological and biomedical labeling, as target materials and other applications.
How many atoms does lead 204?
There are 1.05 x 1020 atoms of Pb-204.
Is lead 205 radioactive?
Unstable isotopes of lead that decay or disintegrate emitting radiation. Pb atoms with atomic weights 194-203, 205, and 209-214 are radioactive lead isotopes.
What is the mass and weight of lead?
Lead – Atomic Mass – Atomic Weight – Pb Element Lead Atomic Number 82 Symbol Pb Element Category Poor Metal Phase at STP Solid
What is the atomic number of a lead atom?
Atomic Data for Lead (Pb) Lead (Pb) Atomic Data for Lead (Pb) Atomic Number = 82 Atomic Weight = 207.2 Reference E95 Isotope Mass Abundance Spin Mag Moment 204Pb
What can lead 204 metal be used for?
Lead 204 Metal is one of over 250 stable Metallic isotopes produced by American Elements for biological and biomedical labeling, as target materials and other applications. Lead Metal 204 additionally has special application in isotope dilution to measure lead levels in blood. Lead Metal is also available in ultra high purity and as nanoparticles.
What is the atomic weight of Pb lead?
Lead (Pb) Atomic Data for Lead (Pb) Atomic Number = 82 Atomic Weight = 207.2