Lead (/ lɛd /) is a chemical element; it has symbol Pb (from Latin plumbum) and atomic number 82. It is a heavy metal that is denser than most common materials. Lead is soft and malleable, …

Plumbul este un metal greu, de culoare gri-argintie cu densitatea foarte mare. Datorită densității ridicate, plumbul și-a găsit utilizarea la protecția contra radiației ionizante. De asemenea, …

Plumbum was the generic name for soft white metals with low melting points, as lead and tin, and later also bismuth and their alloys. Later plumbum was differentiated with the addition of black …

2025年3月5日 · Have you ever heard the word “plumbum” used to describe lead? No, it’s not a typo, and no, it’s not just a fancy scientific name. In fact, lead is called plumbum in Latin, and it …

Lead is a chemical element with the symbol Pb and atomic number 82. The symbol for lead, Pb, comes from the Latin name for the metal, plumbum. The English words "plumbing" and …

Lead was one of the earliest metals discovered by the human race and was in use by 3000 B.C. The ancient Romans used lead for making water pipes and lining baths, and the plumber who …

2024年7月3日 · In carpentry, "plumb" is used to describe a line or feature that is perfectly vertical. It is the counterpart to "level", which means to be perfectly horizontal. Just as floors, …

In most construction projects, the structure supporting the building loads is required to be plumb, to ensure that the load axis is at the center of the loads, being applied to the structural …

2025年2月16日 · In the construction industry of the UAE, the term plumb refers to the perfect vertical alignment of structural elements, ensuring they are perpendicular to the ground. This …

Plumb - Proprietăți, istorie, originea numelui , informați ,aplicați, izotopi, configurare electronică , structură de cristalizare , pericole și altele; Tabel interactiv cu elementele chimice.