Examples of Ions Cation Anion Common Name H+ Cl- hydrochloric acid Li+ Br- lithium bromide K+ I- potassium iodide What is an ion give two Example class 9? An ion is a positively or negatively charged atom or group or … Continue reading →

Heliogen, backed by Gates and biotech billionaire Patrick Soon-Shiong, emerged from stealth mode in late 2019 by announcing a solar breakthrough. For the first time, concentrated solar energy could be used to replace fossil fuels used in industrial processes. Does … Continue reading →

Originally Answered: Do spiders ever run out of web? Yes they do ! It can happen – if a spider has a large, aggressive insect trapped in its web. The spider has to literally choose whether to keep trying to … Continue reading →

Vibranium. It is made of a unique VibraniumVibraniumVibranium (/vaɪˈbreɪniəm/) is a fictional metal appearing in American comic books published by Marvel Comics, noted for its extraordinary abilities to absorb, store, and release large amounts of kinetic energy.https://en.wikipedia.org › wiki › … Continue reading →

Obsidian is much, much harder than steel. At molecular width, it’s edge is hard enough to maintain that razor edge. At that thickness, the steel blade’s serration’s (the ones I mentioned earlier) are too weak, and will bend once you … Continue reading →

Aluminum loses its three valence electrons to form a cation with a charge of +3: The names of these cations are the same as the metals from which they are formed (see Table 5.7). What happens when aluminum loses an … Continue reading →

Diamond. Diamond is the hardest non-metal. What is the strongest non-metal element? Hardest non metal is diamond. It is an allotrope of carbon. It is the hardest known natural occurring substance. But now scientists have discovered wurtzite boron nitride w-BN … Continue reading →

You can have an electric motor without permanent magnets, but you can’t have an electric motor with out [induced] magnetism. Do all DC motors have permanent magnets? All kinds of DC motors work under this principle. Hence for constructing a … Continue reading →

According to the Mohs scale, talc, also known as soapstone, is the softest mineral; it is composed of a stack of weakly connected sheets that tend to slip apart under pressure. When it comes to metals, scientists try to measure … Continue reading →

Aluminium radiators are not particularly prone to corrosion, however this does not mean they absolutely never corrode. The exterior of aluminium radiators are covered in a paint finish which means that surface of the radiator will not react with the … Continue reading →

Platinum is not a hard metal. It is 4 – 4.5 on the MOHs scale of hardness. This means it can be scratched by anything harder than it is. Diamond is ten on the MOHs scale and can easily scratch … Continue reading →

Blade makers have tried to make blades out of materials that are not steel but the general consensus was that steel is the absolute best in almost all regards. You can make a more durable sword out of titanium but … Continue reading →

Diamonds are no longer the world’s hardest substance “Whilst its cubic arrangement makes a diamond very hard, it is also somewhat brittle,” says Professor Phillips. “This is because there are weaknesses along the cubic planes. Why are diamonds brittle? Because … Continue reading →

Emerald: Like sapphires and rubies, emeralds are among the rarest of all gemstones. They are rarer than sapphires but not quite as rare as rubies. Note: Comparing to diamonds, fine quality sapphires, rubies and emeralds are far, FAR more rare. … Continue reading →

Transport, medicine, electronics, energy, defence, desalination; the range of industries where graphene research is making an impact is substantial. What is graphene used in today? Graphene has a lot of promise for additional applications: anti-corrosion coatings and paints, efficient and … Continue reading →