Author: Abdul Wahab

  • Bald Eagle

    Bald Eagle

    Bald eagles are very popular sea eagles in the US because they are the national birds of US. Bald eagles are not actually bald. The word bald is a modification of an old English word “balde” that means white. They are identified by their white head with a yellow beak. […]

  • Platinum

    Platinum

    Symbol: Pt Atomic Number: 78 Atomic Weight: 195 Melting Point: 1768 °C (3215 °F) Boiling Point: 3825 °C (6917 °F) Discovered by: South Americans Platinum is one of the most precious metals found on the Earth. It is more valuable and rare metal than silver and gold. It looks very […]

  • Oxygen

    Oxygen

    Symbol: O Atomic Number: 8 Atomic Weight: 16 Melting Point: -218 °C (-361 °F) Boiling Point: -183 °C (-297 °F) Discovered by: W. Scheele and Joseph Priestly independent of each other. Oxygen is a vital element for all the living things on Earth. Almost all the living things need the […]

  • Nitrogen

    Nitrogen

    Symbol: N Atomic Number: 7 Atomic Weight: 14 Melting Point: -210 °C (-346 °F) Boiling Point: -195 °C (-320 °F) Discovered by: Daniel Rutherford Nitrogen is a gas with 7 protons and 7 neutrons in its nucleus. It is the major building block of our atmosphere. Our atmosphere is the […]

  • Nickel

    Nickel

    Symbol: Ni Atomic Number: 28 Atomic Weight: 7 Melting Point: 1455 °C (2651 °F) Boiling Point: 2913 °C (5275 °F) Discovered by: Axel Cronstedt Nickel is a metal which is classified as a transition element. Its nucleus contains 28 protons and 30 neutrons, which is orbited by 28 electrons. Nickel […]