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Atomic Mass
Atomic mass is the mass of protons, neutrons, and electrons in a single specific atom.
1,752 Questions
What is the mass of a gluestick?
The mass of a typical glue stick ranges from about 20 to 40 grams, depending on its size and brand. Smaller glue sticks may weigh closer to 20 grams, while larger or specialized types can weigh up to 40 grams or more. Always check the packaging for the exact weight of a specific product.
The number of protons identifies this element as aluminum, which has an atomic number of 13. The number of protons is an element's atomic number on the periodic table. Every element has its own unique atomic number which defines it as that element.
What is the mass in grams of 1.72 1023 molecules of aspirin C9H8O4?
[1.72*10+23(molecules)] * [180.157 g.mol-1] / [6.02214129*10+23(molecules.mol−1]
= 51.45 g C9H8O4
What is the nearest whole number of atomic mass of potassium?
The nearest Whole number of atomic mass of potassium is 69
How do you calculate a weighted average such as the atomic mass of boron?
Usually, the weight of an atom would be about twice that of the atomic number. For example, Boron's atomic number is 5, and it has an atomic mass 0f 10.81 amu. This is because of the fact that a neutron and a proton both weight about 1 amu, and an electron is insignificant. To calculate the atomic weight to a higher accuracy than a mere estimate, is beyond me. I hope this helped.
== The equation of atomic mass is protons+nuetrons== atomic mass. ===
Do all lithium atoms have the same mass?
No. There are different isotopes of lithium which have different numbers of neutrons and thus different masses. There are two stable isotopes of lithium: Lithium-6 with 3 neutrons and Lithium-7 with 4 neutrons.
How are the elements arranged by atomic mass?
They are NOT normally arranged by atomic mass; instead they are arranged in the periodic table by their atomic number. The latter is the number of protons (or electrons) in a single atom of the element and it is a constant for the element. The atomic mass is an average of the isotopes of the element (in proportion to their abundance).
While the atomic number is always an integer, increases in steps of 1 and elements that are a specific "distances" apart share similar chemical characteristic. On the other hand the atomic mass is rarely an integer, and occasionally it reverses the order laid out be the periodic table: for example, element 18, argon has an atomic mass of 39.948 which is greater than that of element 19, potassium with a mass of 39.098: this is because the predominant isotope of argon has 22 neutrons while that for potassium has 20 neutrons.
What properties are very similar to changium but has almost twice its atomic mass?
Changium is a flower not a chemical element.
Why is the krypton atomic mass not determined?
The relative atomic mass is 83.798. So where did you get that it is not determined.
What is the atomic mass of an element and how is it determined?
The atomic mass of a radioactively stable element is defined as the mass, usually measured in grams, of Avogadro's Number of atoms of the element as obtained from natural sources on Earth. For most elements, this atomic mass will be an average, weighted by natural isotope percentages, of the individual isotopes of the atom that naturally occur, but some elements have only one naturally occurring non radioactive isotope.
The scale of atomic masses is now established by defining the mass of a carbon-12 isotope to be exactly 12. The atomic masses of other elements are defined by their mass ratios to a carbon-12 isotope.
What has a mass of 0 amu and a charge of -1?
The electron has a charge of -1; but the electron has a mass.
What is the formula for atomic mass of carbon?
You don't need a formula for that. It's on the periodic table.
What is the definition of a mass structure?
Mass structure can be make by piling up or forming similar materials into a particular shape or design.
There are two kinds of mass structures the natural mass structure and manufactured mass structure.
Which of the following equals one atomic mass number?
Atomic number: number of protons or electrons in a neutral atom
Mass number: sum of protons and neutrons in the atomic nucleus
Atomic mass number is not a very correct expression.
What is the atomic mass of sugar?
The atomic mass of sugar, which is the molecular formula C12H22O11, is approximately 342.3 grams per mole.
What is the mass of 95.7 mL of CCI4?
The mass of 95.7 ml of carbon tetrachloride, at normal temperature and pressure, is be 152.2 grams, approx.
