# Hacktivateed

## What is the weight of one atom of platinum?

Platinum

Atomic Mass 195.08u
Electron Configuration [Xe]6s14f145d9
Oxidation States +4, +2
Year Discovered 1735

## What is the weight of 1 atom?

The mass of a single carbon atom is 1.994 x 10-23 g. The mass of a single atom is an extremely small number! This is why chemists use Avogadro’s number.

How many atoms are in platinum?

Name Platinum
Atomic Number 78
Atomic Mass 195.078 atomic mass units
Number of Protons 78
Number of Neutrons 117

### What is the average mass of an atom of platinum?

195.084 u
Platinum/Atomic mass

### Is platinum an element?

Platinum (Pt), chemical element, the best known and most widely used of the six platinum metals of Groups 8–10, Periods 5 and 6, of the periodic table. A very heavy, precious, silver-white metal, platinum is soft and ductile and has a high melting point and good resistance to corrosion and chemical attack.

What is the formula for platinum IV cyanide?

Platinum(IV) Cyanide Pt(CN)4 Molecular Weight — EndMemo.

#### How many atoms are in a mole?

6.022
The value of the mole is equal to the number of atoms in exactly 12 grams of pure carbon-12. 12.00 g C-12 = 1 mol C-12 atoms = 6.022 × 1023 atoms • The number of particles in 1 mole is called Avogadro’s Number (6.0221421 x 1023).

#### How heavy is a hydrogen atom?

1.00784 u
Hydrogen/Atomic mass

What are 5 interesting facts about platinum?

Platinum Facts

• Meteorites and our moon contain a higher percentage of platinum than can be found on the Earth.
• The melting point of platinum is 3,215 °F (1,768.4 °C) and the boiling point is 6,917 °F (3,825 °C).
• Typically 95% pure, platinum is one of the purest precious metals.

## What are 5 facts about platinum?

Platinum is a silver-white metal — it was once known as “white gold.” It is extremely resistant to tarnishing and corrosion (which makes it known as a “noble metal”) and is very soft and malleable, making it easy to shape; ductile, making it easy to stretch into wire; and unreactive, which means it doesn’t oxidize and …

## Where is platinum found?

The majority (about 80 percent) of platinum is mined in South Africa. Approximately 10 percent is mined in Russia, and the rest is found in North and South America, according to the U.S. Geological Survey.

What is the charge of platinum?

+2
Platinum

atomic number 78
boiling point 3,827 °C (6,920 °F)
specific gravity 21.45 (20 °C)
oxidation states +2, +4
electron configuration [Xe]4f145d96s1

### What is the atomic mass of platinum?

The atomic mass of the element Platinum is approximately 195.084 atomic mass unit

### What is standard atomic weight?

The standard atomic weight (A r, standard) is the average of the relative atomic masses (A r) of all the isotopes of a chemical element weighted by their respective abundance on Earth.

How do you find atomic mass?

The easiest way to find the atomic mass is to look it up on a periodic table. The atomic mass for each element is given in atomic mass units or grams per mole of atoms. This value is the average atomic mass of the element. This is because elements may have more than one naturally occurring isotope.

#### What determines the atomic weight of an atom?

The weight of an atom is determined by the number of neutrons and protons that are present in the nucleus. The proton and neutron, which are similar in mass, each weighs approximately 1,836 times greater than a single electron, thus the mass contributed by electrons is insignificant when determining atomic weight or atomic mass.