Is lead a heterogeneous or homogeneous mixture? - Answers
2024年5月26日 · Lead is a pure substance, not a mixture. It is an element with the chemical symbol Pb, and it consists of only one type of atom.
What does lead (the element) look like? - Answers
2023年8月11日 · No, lead is a chemical element with the symbol Pb and atomic number 82, while carbon is a different element with the symbol C and atomic number 6. Allotropes are different …
nouns - Are chemical element names capitalized? - English …
2017年5月12日 · Are chemical element names capitalized? Ask Question Asked 14 years, 4 months ago.
What is the mass number of the element lead? - Answers
2024年5月28日 · The element with atomic mass number 207 is lead (Pb). Lead is a heavy metal that is commonly used in batteries, construction materials, and ammunition. What element has …
Is pencil lead a compound or an element or an homogeneous
2024年11月28日 · Pencil lead is not lead at all. Rather, it is graphite, a form of the element carbon. Keep in mind, however, that modern pencils use a mixture of graphite and clay for the …
Is lead an element or a compound? - Answers
2024年5月21日 · The element name for PbS is lead sulfide. Lead (Pb) is a metal, and sulfide (S) is a non-metal that together form a binary compound known as lead sulfide. Is lead nitrate a …
Why element makes diamonds and pencil lead? - Answers
2024年6月2日 · The element of pencil lead is graphite, which is not actually lead but rather a form of carbon. Graphite is a good conductor of electricity and is commonly used in pencils due to …
What is the standard state of the element lead? - Answers
2023年8月11日 · What does lead mean in science? Lead is a heavy metal. An element. Atomic number 82 (has 82 protons in nucleus). Symbol is Pb, which comes from its Latin name …
Is lead a compound or element? - Answers
2024年6月10日 · Lead is a chemical element (Pb) found in nature, while tetraethyl lead (TEL) is a compound used as an antiknock additive in automotive gasoline. TEL contains lead as one of …
What are the elements found in pencil lead? - Answers
2024年5月23日 · Carbon is the element found in both diamonds and pencil lead. In diamonds, carbon atoms are arranged in a crystal lattice structure, making it a prized and valuable …