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The Atomic Mass of an element is the average mass of an atom of that element. For a gas with an atomic mass of 20, it could be calcium (Ca). Calcium has an atomic number of 20 and an atomic mass of approximately 40.08 grams per mole.
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What element has amu 20 and is a gas?
The element with an atomic mass unit (amu) of 20 and is a gas is Neon. Neon has an atomic number of 10 and is a noble gas found in the Earth's atmosphere.
What is the atomic number and the mass number of an element with 20 atomic number and 23 mass number?
The element with atomic number 20 is calcium. The mass number 23 indicates the total number of protons and neutrons in the nucleus of the atom. Since the mass number is 23 and the atomic number is 20, the number of neutrons in this calcium atom would be 3 (23 - 20).
The Atomic and mass number for calcium?
Calcium is a metal element. Atomic mass of it is 40.
If an atom has a mass number of 40 and an atomic number of 20 how many electrons does it have?
There are many isotopes that have a mass number of 40. Calcium 20 has a mass number of 40 but so does potassium 21 and Argon 22. Calcium twenty however is probably the one you want as it is more common then the other isotopes listed.
What is calciums atomic number?
Calcium's atomice weight is 40.078 amu (atomic mass units).
What has atomic mass 20 and is a gas?
Neon.
What is the atomic mass 20 and is a gas?
Neon
What element has the atomic mass 20 and is also a gas?
Neon
What element has amu 20 and is a gas?
The element with an atomic mass unit (amu) of 20 and is a gas is Neon. Neon has an atomic number of 10 and is a noble gas found in the Earth's atmosphere.
What elements mass is 30 and a noble gas but not neon?
The element with a mass of 30 and is a noble gas, other than neon, is krypton (Kr). With an atomic number of 36, krypton has 36 protons in its nucleus and typically has 44 neutrons in its most common isotope, giving it an atomic mass near 84.
What is the atomic number and mass of calicum?
Calcium: Atomic # is 20, & the atomic mass is 40.078 amu.
What is the atomic mass of gas?
The atomic mass of a gas depends on the specific element that the gas is composed of. For example, the atomic mass of oxygen gas (O2) is approximately 32 g/mol, while the atomic mass of hydrogen gas (H2) is approximately 2 g/mol.
What is the noble has gas with the lowest atomic mass?
Helium with an atomic mass of 4.00260
Gas atomic mass 16 8 nuetrons?
The number of protons and neutrons in an atom is equal to its atomic mass. Since the atomic mass of this gas atom is 16 and it has 8 neutrons, the remaining mass (16-8=8) must be the protons in the nucleus. Therefore, this gas atom has 8 protons.
What element Nobel gas with atomic mass of 226?
Radon has atomic mass of 222. There is isotope of Radon with mass number 226. Radon is a Nobel gas.
What is the atomic mass for an argon gas?
Argon is a non meta element. Atomic mass of it is 40.
What is the atomic mass of Ne?
Neon is a non metal element. Atomic mass of it is 20.
