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The most likely answer for the clue is TIN. We found more than 1 answers for Only Three Letter Chemical Element..
What element has the shortest half life?
Hydrogen-7 ( about 23x10E-24) has the shortest half life.
What is N in chemistry?
nitrogen (N), nonmetallic element of Group 15 [Va] of the periodic table. It is a colourless, odourless, tasteless gas that is the most plentiful element in Earth’s atmosphere and is a constituent of all living matter. nitrogen.
What element is the heaviest?
There are 91 naturally occurring elements (but it depends on how you count them). The heaviest element that occurs in large quantity is uranium (atomic number 92).
What is the rarest element in the world?
Astatine is the rarest element on Earth; only approximately 25 grams occur naturally on the planet at any given time. Its existence was predicted in the 1800s, but was finally discovered about 70 years later.
Which element is hardest?
Can you name the hardest element? It’s an element that occurs naturally in pure form and has a hardness of 10 on the Mohs scale. Chances are you have seen it. The hardest pure element is carbon in the form of a diamond.
What is the lightest element in the universe?
Hydrogen, 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).
What element is heavier than gold?
Tungsten: One Of The Heaviest Metals & A Hard Act To Follow
| Metal | Density (g/cm 3 ) |
|---|---|
| Neptunium | 20.45 |
| Plutonium | 19.82 |
| Gold | 19.30 |
| Tungsten | 19.25 |
• Nov 19, 2012
What is the 2nd rarest element on Earth?
| Astatine | |
|---|---|
| Pronunciation | /ˈæstətiːn, -tɪn/ (ASS-tə-teen, -tin) |
| Appearance | unknown, probably metallic |
| Mass number | [210] |
| Astatine in the periodic table |
What is the name of F in chemistry?
Fluorine – Element information, properties and uses | Periodic Table.
Which element decays the fastest?
Bismuth-209 ( 209 Bi) is the isotope of bismuth with the longest known half-life of any radioisotope that undergoes α-decay (alpha decay).
Bismuth-209.
| General | |
|---|---|
| Decay mode | Decay energy (MeV) |
| Alpha emission | 3.1373 |
| Isotopes of bismuth Complete table of nuclides |
What Colour is chlorine?
Chlorine is a greenish yellow gas at room temperature and atmospheric pressure.
What color is fluoride?
| Fluorine | |
|---|---|
| Pronunciation | /ˈflʊəriːn, -ɪn, -aɪn/ /ˈflɔːriːn, -ɪn, -aɪn/ (FLOR-een, -in, -eyen) |
| Allotropes | alpha, beta (see Allotropes of fluorine) |
| Appearance | gas: very pale yellow liquid: bright yellow solid: alpha is opaque, beta is transparent |
| Standard atomic weight A r °(F) | 18.998403162±0.000000005 18.998±0.001 (abridged) |
What is the coolest element?
Plutonium. Pretty much all of the radioactive elements are cool. Plutonium is particularly awesome because it truly does glow in the dark. Plutonium’s glow isn’t due to its radioactivity, though.
What is the rarest thing in the universe? The object in question is known as J005311, located in the constellation Cassiopeia about 10,000 light … The sports universe is a place governed by rules and routines.
What’s the longest half-life? The half-life of xenon-124 — that is, the average time required for a group of xenon-124 atoms to diminish by half — is about 18 sextillion years (1.8 x 10^22 years), roughly 1 trillion times the current age of the universe. This marks the single longest half-life ever directly measured in a lab, Wittweg added.
What has a half-life of 33 years? Cesium-137, on the other hand, has a half life of 33 years.
What is s in chemistry?
sulfur (S), also spelled sulphur, nonmetallic chemical element belonging to the oxygen group (Group 16 [VIa] of the periodic table), one of the most reactive of the elements.
How do you write fluoride?
Fluoride ion | F- – PubChem.
What is Z and A in chemistry?
Z = atomic number = number of protons in the nucleus = number of electrons orbiting the nucleus; A = mass number = number of protons and neutrons in the most common (or most stable) nucleus.
What is K in periodic table?
Potassium – Element information, properties and uses | Periodic Table.
What is G in periodic table?
Gallium – Element information, properties and uses | Periodic Table.
What is K in chemistry?
The equilibrium constant, K, expresses the relationship between products and reactants of a reaction at equilibrium with respect to a specific unit.
What color is nitrogen?
In its gas form, nitrogen is colorless, odorless and generally considered as inert. In its liquid form, nitrogen is also colorless and odorless, and looks similar to water, according to Los Alamos.
Is silicon a metal? silicon (Si), a nonmetallic chemical element in the carbon family (Group 14 [IVa] of the periodic table). Silicon makes up 27.7 percent of Earth’s crust; it is the second most abundant element in the crust, being surpassed only by oxygen.
What is the heaviest radioactive element?
According to the Periodic Table of Radioactivity, at this time the most radioactive element known to man is element number 118, Oganesson. The decay rates for the latest man-made elements are so fast that it’s hard to quantify how quickly they break apart, but element 118 has the heaviest known nucleus to date.
