Table of Contents
What is the mass number of lead 208?
207.9766521
Properties of Lead-208 Isotope:
| Properties of Lead-208 Isotope: | LEAD-208 |
|---|---|
| Relative Isotopic Mass | 207.9766521 |
| Neutron Number (N) | 126 |
| Atomic Number (Z) | 82 |
| Mass Number (A) | 208 |
What is the mass number of lead 207?
206.9758969
Properties of Lead-207 Isotope:
| Properties of Lead-207 Isotope: | LEAD-207 |
|---|---|
| Relative Isotopic Mass | 206.9758969 |
| Neutron Number (N) | 125 |
| Atomic Number (Z) | 82 |
| Mass Number (A) | 207 |
What is the lead number?
82
Fact box
| Group | 14 | 327.462°C, 621.432°F, 600.612 K |
|---|---|---|
| Atomic number | 82 | 207.2 |
| State at 20°C | Solid | 208Pb |
| Electron configuration | [Xe] 4f145d106s26p2 | 7439-92-1 |
| ChemSpider ID | 4509317 | ChemSpider is a free chemical structure database |
What is the mass of lead 204?
203.973020
Reference E95
| Isotope | Mass | Spin |
|---|---|---|
| 204Pb | 203.973020 | 0 |
| 206Pb | 205.974440 | 0 |
| 207Pb | 206.975872 | 1/2 |
| 208Pb | 207.976627 | 0 |
What is the mass number of lead 204?
203.9730436
Properties of Lead-204 Isotope:
| Properties of Lead-204 Isotope: | LEAD-204 |
|---|---|
| Relative Isotopic Mass | 203.9730436 |
| Neutron Number (N) | 122 |
| Atomic Number (Z) | 82 |
| Mass Number (A) | 204 |
What is the atomic mass of PB 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] |
What is lead classified?
Lead is the fifth element of the fourteenth column in the periodic table. It is classified as a post-transition metal, a heavy metal, and a poor metal. Lead atoms have 82 electrons and 82 protons with 4 valence electrons in the outer shell. Characteristics and Properties.
What does the 208 in lead 208 represent?
The three isotopes lead-206, lead-207, and lead-208 represent the ends of three decay chains: the uranium series (or radium series), the actinium series, and the thorium series, respectively; a fourth decay chain, the neptunium series, terminates with the thallium isotope 205Tl.
What is the formula mass of lead?
Calcium hydroxide has the formula Ca(OH)2. The subscript number after the brackets multiplies whatever is in the brackets (a bit like in maths). Start a new model in Yenka and verify your answer using a beaker of lead nitrate. Formula mass of lead nitrate is 331 (331g = 1 mole).
What is the molar mass of lead?
The molar mass of lead is 207.2- there is only one atom so you leave this number as it is. The molar mass of sulfur is 32.07- since there are two atoms, you multiply this number by 2.
What is the mass number of the element lead?
Lead (pronounce: “/’lɛd/”) is a chemical element. Its chemical symbol is Pb, which comes from plumbum, the Latin word for lead. Its atomic number is 82, atomic mass is 207.2 and has a melting point of 327.8°C. It is a very poisonous and heavy metal.
What is Pb on the periodic table?
Lead, atomic number 82 in the periodic table, is a metallic element with the chemical symbol Pb, which stands for plumbum, the Latin name for the element. It is a soft, pliable metal that is silvery-white in color when freshly cut, but on exposure to air quickly acquires a dull gray appearance due to the formation of a layer of oxide.