Agniya Jochem (Ballet Historian)

List of Contributed Questions (Sorted by Newest to Oldest)

No Question(s) Posted yet!

List of Contributed Answer(s) (Sorted by Newest to Oldest)

Answer # 1 #

Hey, relax. Exams are just one part. Many successful people score low in 10th. Think future, many opportunities. Talk to parents, see examples like Einstein bad in school.Tips: Read motivational books. Exercise. Remember, life have many chances.

Answer # 2 #

Diamond is hard because of its atomic structure. Each carbon atom in a diamond is covalently bonded to four other carbon atoms in a tetrahedral arrangement. This creates a very strong three-dimensional network of bonds. Since covalent bonds are among the strongest in chemistry, this rigid bonding pattern makes diamond the hardest known natural material.

Answered for the Question: "Why is diamond hard?"