1. Atomic Number List
2. Atomic Number 46 Meaning

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Atomic number 46: 1 n a silver-white metallic element of the platinum group that resembles platinum; occurs in some copper and nickel ores; does not tarnish at ordinary temperatures and is used (alloyed with gold) in jewelry Synonyms: Pd, palladium Type of: metal, metallic element any of several chemical elements that are usually shiny. Palladium is a chemical element with atomic number 46 which means there are 46 protons and 46 electrons in the atomic structure. The chemical symbol for Palladium is Pd. Palladium, platinum, rhodium, ruthenium, iridium and osmium form a group of elements referred to as the platinum group metals (PGMs).

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1. Name: Palladium: Symbol: Pd: Atomic Number: 46: Atomic Mass: 106.42 atomic mass units: Number of Protons: 46: Number of Neutrons: 60: Number of Electrons: 46: Melting.
2. Atomic Number: 46: Atomic Radius: 202 pm (Van der Waals) Atomic Symbol: Pd: Melting Point: 1554.9 °C: Atomic Weight: 106.4: Boiling Point: 2963 °C: Electron Configuration: Kr4d 10: Oxidation States: 0, +1, +2, +3, +4 (a mildly basic oxide).

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• PALLADIUM

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Atomic Number List

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The Element Palladium

[Click for Isotope Data]

Atomic Number: 46

Atomic Weight: 106.42

Melting Point: 1828.05 K (1554.9°C or 2830.8°F)

Boiling Point: 3236 K (2963°C or 5365°F)

Density: 12.0 grams per cubic centimeter

Phase at Room Temperature: Solid

Element Classification: Metal

Period Number: 5

Group Number: 10

Group Name: none

What's in a name? Named for the asteroid Pallas and the Greek goddess of wisdom.

Say what? Palladium is pronounced as peh-LAY-dee-em.

History and Uses:

Palladium was discovered by William Hyde Wollaston, an English chemist, in 1803 while analyzing samples of platinum ore that were obtained from South America. Although it is a rare element, palladium tends to occur along with deposits of platinum, nickel, copper, silver and gold and is recovered as a byproduct of mining these other metals.

Palladium is used to make springs for watches, surgical instruments, electrical contacts and dental fillings and crowns. Finely divided palladium acts as a catalyst and is used in hydrogenation and dehydrogenation processes. Palladium at room temperature can absorb up to 900 times its own volume of hydrogen. Hydrogen will easily pass through heated palladium, a property that allows for the easy purification of hydrogen. Palladium alloys are used to make jewelry and, when alloyed with gold, forms a material known as white gold.

Palladium dichloride (PdCl₂), a palladium compound, can absorb large amounts of carbon monoxide (CO) gas and is used in carbon monoxide detectors.

Estimated Crustal Abundance: 1.5×10^-2 milligrams per kilogram

Estimated Oceanic Abundance: Not Applicable

Number of Stable Isotopes: 6 (View all isotope data)

Ionization Energy: 8.337 eV

Oxidation States: +3, +2

Atomic Number 46 Meaning

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