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What gas element has an atomic mass less than 30 is not neon and is a noble gas?
Wiki User
∙ 6y ago
helium (He)
Wiki User
∙ 13y ago
Anonymous
Tyler Ramoutar
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Wiki User
∙ 11y agoHelium, mass 4 approx.
Wiki User
∙ 6y agoThat would have to be Helium.
Malachi Goode
He Helium
Virginia Scott
Zinc
TTV RustLogan
carbon
Anonymous
5
Anonymous
Carbon
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What element has a mass of less than 30 and is a noble gas?
Neon's mass is the element closest to 30 out of all noble gasses.
What is the noble gas with lowest atomic mass?
Atomic mass increases from top to bottom and left to right on the periodic table. In each row, the noble gasses have the highest atomic mass. As you travel down that column, also called a group or family, the noble gasses increase in atomic mass. The naturally occurring noble gas with the highest atomic mass is Radon (Rn; atomic mass = 211.4 amu). In 2002, the unstable element Ununoctium was synthesized, and although it is a member of group 18, it was later determined to be a solid at room temperature, so it is not classified as a noble gas.
What is the atomic mass for magnesiam?
Magnesium is a meta element. Atomic mass of it is 24.
What is the atomic number and atomic mass of this element?
Atomic number is the number of protons. Atomic mass is (mostly) the sum of the masses of the protons and neutrons (more or less).
What is the difference between the atomic number and the atomic mass?
Atomic mass is the mass of 1 mole of the element. Atomic number is the number of protons the element has
Which element has the largest atomic mass in the noble gases?
Radon
What element has an atomic mass greater than 75 but less than 79?
Element 34, Selenium, has an atomic mass of about 78.96.
What element has a mass of less than 30 and is a noble gas?
Neon's mass is the element closest to 30 out of all noble gasses.
What element can have the atomic number 118 and also the mass number 50?
No element can have those features; the mass can never be less than the atomic number in any element.
What is the noble gas with lowest atomic mass?
Atomic mass increases from top to bottom and left to right on the periodic table. In each row, the noble gasses have the highest atomic mass. As you travel down that column, also called a group or family, the noble gasses increase in atomic mass. The naturally occurring noble gas with the highest atomic mass is Radon (Rn; atomic mass = 211.4 amu). In 2002, the unstable element Ununoctium was synthesized, and although it is a member of group 18, it was later determined to be a solid at room temperature, so it is not classified as a noble gas.
What is the atomic mass for magnesiam?
Magnesium is a meta element. Atomic mass of it is 24.
What is the atomic number and atomic mass of this element?
Atomic number is the number of protons. Atomic mass is (mostly) the sum of the masses of the protons and neutrons (more or less).
Which element has the atomic mass of 126.9045?
The element is Iodine (I). It has an atomic mass of about 126.9.
What is the difference between the atomic number and the atomic mass?
Atomic mass is the mass of 1 mole of the element. Atomic number is the number of protons the element has
Which is the average of the mass numbers of an element's isotopes?
the Atomic Mass
What is the atomic mass of a nickel?
Nickel is a meta element. Atomic mass of it is 59.
What is the atomic mass of Antimony?
Antimony is a meta element. Atomic mass of it is 122.
