Question

please answer please answer​

Answer 1

Answer:

1:) they have weak metallic bonding between the atoms. Due to the presence of weak metallic bonding alkali metals are soft and can be cut with a knife.

2:) Diamond is used in jewellery because, when cut by experts, it will sparkle and reflect light in an attractive way. Diamond's hardness and high melting point make it useful for cutting tools, such as the diamond-tipped discs used to cut bricks and concrete.

Hope it helps uh