Author: Abdul Wahab
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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 […]
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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 […]
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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 […]
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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 […]
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Iron
Symbol: Fe Atomic Number: 26 Atomic Weight: 8 Melting Point: 1538 °C (2800 °F) Boiling Point: 2862 °C (5182 °F) Discovered by: Known since ancient time. Iron is a very useful metal used in the modern world. It shapes our building structures and flows in the Earth’s core as a […]