Who Said It: Henry David Thoreau
When: 1854
The Story behind It: American philosopher and naturalist Thoreau isolated himself at Walden Pond in Massachusetts from 1845 to 1847. His experiences during that time were published in Walden (1854), which Thornton Wilder called "a manual of self-reliance." In a well-known passage, Thoreau stated his purpose: "I went to the woods because I wished to live deliberately, to front only the essential facts of life, and see if I could not learn what it had to teach, and not, when I came to die, discover that I had not lived. I did not wish to live what was not life, living is so dear; nor did I wish to practice resignation..." In the first essay, "Economy," Thoreau comments that most men are slaves to their work and enslaved to those for whom they work. He concludes: "The mass of men lead lives of quiet desperation. What is called resignation is confirmed desperation...."
Henry David Thoreau
Lead's atomic mass is 207.2 Its atomic number is 82
Lead is a metal element. Atomic mass of it is 207.
It's quiet simple really all you do is: Volume X Density= Mass
Lead is a metal element. Atomic mass of it is 207.
Lead is a meta element. Atomic mass of it is 207.
An atom of lead has more mass than an atom of gold. This is because lead has a greater atomic mass than gold, due to the larger number of protons, neutrons, and electrons in a lead atom compared to a gold atom.
Lead (Pb) has the atomic number 82 with an Atomic Mass of 207.2 amu.
Lead is a non element. Atomic mass of it is 12.
The mass of a pencil lead is typically measured in grams.
Cobalt (Co) has a smaller atomic mass than Lead (Pb). Cobalt's atomic mass is only 58.9332 while lead's is 207.2.
The mass number of lead (Pb) varies depending on the isotope. The most stable and abundant isotope is lead-207, which has a mass number of 207. Other common isotopes include lead-206 and lead-208, with mass numbers of 206 and 208, respectively. The mass number represents the total number of protons and neutrons in the nucleus of an atom.