Recent content by thesparrow

  1. T

    What are the criteria for classifying elements as metalloids and halogens?

    I'm currently studying grade 11 chemistry... And the periodic table of elements slightly confuses me. I am having trouble understanding which are metalloids, and halogens. In the handout that my teacher gave me, it listed the following as metalloids: B, Si, Ge, As, Sb, Te, Po, and At. It also...
    • thesparrow
    • Thread
    • Elements Periodic Periodic table Table
    • Replies: 1
    • Forum: Chemistry
  2. T

    What does a blind person see?

    I just wanted to pitch into this conversation. When I was little (about 7 years old), a completely unrelated surgery left me temporarily blind, if that even makes sense. For approximately a month, I remember being able to see nothing but blackness. At first, it was blackness, but then it soon...