Quick Answer: What Is The Heaviest Element On The Periodic Table?

What elements are toxic to the human body?

Conversely, there are a number of elements that are toxic to the human body, interfere with its functioning and undermine health—such as mercury, lead, cadmium, aluminum, and arsenic..

What is the most expensive element on earth?

franciumThe most expensive natural element is francium. Although francium occurs naturally, it decays so quickly that it cannot be collected for use. Only a few atoms of francium have been produced commercially, so if you wanted to produce 100 grams of francium, you could expect to pay a few billion U.S. dollars for it.

What is the most dangerous metal on earth?

PlutoniumSurely you know what Plutonium is. It’s one of the most dangerous, radioactive, toxic elements in the world. It’s used in atomic bombs and the production of nuclear energy. And it’s responsible for killing a massive number of people in the world, in mere seconds.

What’s harder than diamond?

wurtzite boron nitride(PhysOrg.com) — Currently, diamond is regarded to be the hardest known material in the world. But by considering large compressive pressures under indenters, scientists have calculated that a material called wurtzite boron nitride (w-BN) has a greater indentation strength than diamond.

What is the lightest and heaviest element on the periodic table?

The lightest chemical element is Hydrogen and the heaviest is Hassium. The unity for atomic mass is gram per mol. Please note that the elements do not show their natural relation towards each other as in the Periodic system.

What is the rarest element on earth?

AstatineDensity (near r.t. ) Astatine is a chemical element with the symbol At and atomic number 85. It is the rarest naturally occurring element in the Earth’s crust, occurring only as the decay product of various heavier elements.

What is the smallest element?

heliumThus, helium is the smallest element, and francium is the largest.

What is the second heaviest element?

OganessonHydrogenPotassiumCalciumIronRubidiumStrontiumRutheniumCaesiumBariumOsmiumFranciumRadiumHassium2 more rows

What is the lightest element in the universe?

HydrogenHydrogen, most abundant in the universe, is the chemical element with atomic number 1, and an atomic mass of 1.00794 amu, the lightest of all known elements. It exists as a diatomic gas (H2). Hydrogen is the most abundant gas in the universe.

Which is the lightest gas in the world?

HydrogenHydrogen is the lightest, most abundant and explosive gas on Earth. The atomic weight of Radon is 222 atomic mass units making it the heaviest known gas. It is 220 times heavier than the lightest gas, Hydrogen.

Can osmium stop a bullet?

Additionally, you might not be able to fire the bullet at all. … Osmium is so hard (nearly as hard as diamond) that in trying to force it into the narrower space of the rifling, you may simply shatter the bullet, because it it also very brittle.

Is Lead heavier than gold?

Gold is much heavier than lead. It is very dense. … Therefore gold weighs 19.3 times as much or (19.3 x 8.3 lb) about 160 pounds per gallon. Although gold has a density 19.3 times greater than water and is one of the most dense substances on Earth, there are substances with far more amazing densities.

What element is the most powerful?

The Most Powerful Element Of All: Water. The most powerful element of all: water . Water is the most powerful clement I know of. It is powerful emotionally, phys ically and spiritually.

What is the strongest thing on earth?

Diamond is the hardest substance found on earth in so many natural forms, and it is an allotrope of carbon. The hardness of diamond is the highest level of Mohs hardness – grade 10.

Where are the heaviest elements on the periodic table?

The heaviest element in terms of heaviest per a given number of atoms is the element with the highest atomic weight. This is the element with the largest number of protons, which is presently element 118, oganesson or ununoctium.

What is the heaviest element in the universe?

uraniumThe heaviest element that occurs in large quantity is uranium (atomic number 92). You can mine it like gold. Technetium (atomic number 43) does not occur naturally.

Which element is hardest?

carbonThe hardest pure element is carbon in the form of a diamond. Diamond is not the hardest substance known to man. Some ceramics are harder, but they consist of multiple elements.

What is the most expensive substance on earth?

Antimatter1. Antimatter – $62.5 trillion per gram. The most expensive substance on Earth.