# What is the average atomic mass of neon?

20.1797 u ± 0.0006 u

Similarly, it is asked, how many protons are in ag 107?

Explanation: There are two stable isotops of silver (Ag): Ag-107: 47 protons and 60 neutrons →10747Ag. Ag-109: 47 protons and 62 neutrons →10947Ag.

What is the atomic mass of silver?

107.8682 u

What is the atomic mass of Re 185?

The element rhenium (Re) has two naturally occurring isotopes, 185Re and 187Re, with an average atomic mass of 186.207 amu. Rhenium is 62.60% 187Re, and the atomic mass of 187Re is 186.956 amu. Calculate the mass of 185Re.

## How does the radioactive isotope C 14 differ from?

Carbon-14, 14C, or radiocarbon, is a radioactive isotope of carbon with an atomic nucleus containing 6 protons and 8 neutrons. Its presence in organic materials is the basis of the radiocarbon dating method pioneered by Willard Libby and colleagues (1949) to date archaeological, geological and hydrogeological samples.

## What is the average atomic mass based on?

Calculating Average Atomic Mass. The average atomic mass of an element is the sum of the masses of its isotopes, each multiplied by its natural abundance (the decimal associated with percent of atoms of that element that are of a given isotope).

## What is the atomic mass of neon to the nearest whole number?

The periodic table shows atomic mass of Ne to be 20.180. Rounding this to a whole number you get 20 g/mole.

## What is the mass of this atom of calcium 40?

The mass number of an isotope is the sum of the number of protons and neutrons in the atomic nucleus. The atomic number is the number of protons. The calcium-40 isotope has a mass number of 40 , and an atomic number of 20 , therefore it has 20 protons.

## What is the mass of neon 22?

This is the average atomic mass of neon. Let’s just take a second and see if 20.18 amu seems like a reasonable answer, given the initial data. According to the table, most neon (over 90%) has a mass of approximately 20 amu, a tiny bit has a mass of around 21 amu, and around 9% has a mass of 22 amu.

## Which neon isotope is the most abundant?

Isotopes of the Element NeonMass NumberNatural AbundanceHalf-life2090.48%STABLE210.27%STABLE229.25%STABLE

## What is the atomic number of carbon 12?

Carbon-12 is of particular importance in its use as the standard from which atomic masses of all nuclides are measured. Its mass number is 12 by definition and contains 6 protons, 6 neutrons and 6 electrons.

39.948

## What special group is neon in?

NeonGeneral propertiesGroupgroup 18 (noble gases)Periodperiod 2Element categorynoble gasBlockp-block

## How many protons does an atom of zinc contain?

NameZincAtomic Mass65.39 atomic mass unitsNumber of Protons30Number of Neutrons35Number of Electrons30

## How many protons and electrons are in bismuth?

It has 83 protons and a magic number of 126 neutrons, and an atomic mass of 208.9803987 amu (atomic mass units). All of the primordial bismuth is of this isotope.

## What does the element neon look like?

Characteristics: Neon is a light, very inert gas. Colorless under normal conditions, it glows a reddish-orange in a vacuum discharge tube. It has the smallest liquid range of any element (2.6 oC).

## What is hydrogen 1?

Hydrogen has no neutron, deuterium has one, and tritium has two neutrons. The isotopes of hydrogen have, respectively, mass numbers of one, two, and three. Their nuclear symbols are therefore 1H, 2H, and 3H. The atoms of these isotopes have one electron to balance the charge of the one proton.

## What are the isotopes of neon?

The three Neon isotopes are used for various purposes. Ne-22 is used for the production of the medical radioisotope Na-22. Ne-20 can be used for the production of F-18, although the route via O-18 is by far the most commonly used. Ne-21 has been used in Masers to study quantum physics.

## Is Lithium 8 stable?

Naturally occurring lithium (3Li) is composed of two stable isotopes, lithium-6 and lithium-7, with the latter being far more abundant: about 92.5 percent of the atoms. The longest-lived radioisotope of lithium is lithium-8, which has a half-life of just 838 milliseconds.

## How many protons electrons and neutrons are in neon?

There are 10 protons, and 10 electrons in un-ionized neon. 90% of the neon atoms contain 10 neutrons. There are a few with 11 neutrons and around 9% with 12. Those with extra neutrons are called isotopes, the nucleii having 10 protons but a few with different numbers of neutrons.

## What is the number of neutrons in a neon atom?

NameNeonAtomic Mass20.1797 atomic mass unitsNumber of Protons10Number of Neutrons10Number of Electrons10

## How did neon get it’s name?

Neon gets its name from the Greek word “neos,” meaning “new.” The gas was first isolated in 1898 by chemists William Ramsay and Morris Travers, who were busily discovering noble gases left and right by evaporating liquefied air, according to the Royal Society of Chemistry.

## What does neon do?

Uses: Neon is used glow lamps, electron tubes, signs, plasma studies, fluorescent starter tubes, cryogenic refrigeration and gas lasers. Neon is a colorless, odorless, and tasteless monatomic gas, belonging to the Group VIIIA elements, called noble gases.

## Is Neon toxic?

Neon is a rare atmospheric gas and as such is non-toxic and chemically inert. Neon poses no threat to the environment, and can have no impact at all because it’s chemically unreactive and forms no compounds. No known ecological damage caused by this element.

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