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It tells us the total mass of Protons and Neutrons, in AMU, Atomic Mass Units.
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What does the atomic weight of an element tell us about it?
The atomic number tells us the number of protons in the nucleus of an atom. The atomic mass tells us the sum of the protons and neutrons in a nucleus.The atomic weight (not mass) of a chemical element is the ratio between the average mass of the atoms of this element to 1/12 from the atomic mass of carbon-12.The atomic mass is a term applied only to specific isotopes; the unit is the same as above. Is a value denoting the total mass of all the protons, neutrons, and electrons in an isotope.The mass number tells us the number (the sum) of protons and neutrons in the nucleus of an atom.The atomic number, on the other hand, tells us how many protons are in the nucleus of an atom.IUPAC publish periodically tables of atomic weights - the last edition is from 2009-2010.For the atomic masses of isotopes the last published edition is The AME 2003 atomic mass evaluation, edited by Audi, Wapstra and Thibault.
What is the number of neutrons plus protons in the nucleus of an atom is called?
Mass NumberProtons and neutrons are collectively called called nucleons. The number of nucleons (protons plus neutrons) in the nucleus of an atom is called the mass number. For example, Lithium has 3 protons and 4 neutrons in its nucleus. It's mass number is 7 (3+4). The mass number usually goes in front of the atomic symbol and in superscript, such as 7Li.The answer is not atomic mass or atomic weight. Although atomic mass and atomic weight are slightly different measures, they both describe averages. To determine the total number of nucleons in an atom, you need to isolate a specific isotope and add together the number of protons and neutrons.See the Related Questions below for how to find the number of protons, neutrons and electrons in any atom.
The total mass of the protons and neutrons in an atom is called the?
The sum of the number of protons and neutrons in the atomic nucleus is called the "mass number".For example, Lithium has 3 protons and 4 neutrons in its nucleus. It's mass number is 7 (3+4). The mass number usually goes in front of the atomic symbol and in superscript, such as 7Li.The protons and neutrons, which are called nucleons when they are talked about as the components of an atomic nucleus, add up to make the atomic mass of an atom. Strictly speaking, the electrons are included, but they weigh next to nothing, being about 1/1836th the mass of a proton. That lets us use as the Atomic Mass the number of nucleons in the nucleus of the atom.If all of the atomic masses of atoms of a given element are averaged, the result is the element's atomic weight. These terms are often confused and thus special care must be taken when using them.
What does the law of conservation of mass tell about the mass of a reactants and products in a reaction before a chemical reaction and the ass of the products of the mass of products after a chemical?
The law of conservation of mass tells us that the mass of the products will equal the mass of the reactants in a chemical reaction.
What does a mass spectrometer tell us in an atom or an element?
The relative atomic weight or standard atomic weight (not mass) of a chemical element is the ratio between the average mass of the atoms of this element to 1/12 from the Atomic Mass of carbon-12.
What does the mass number of an atom tell you about the atom?
The mass number tells us the number (the sum) of protons and neutrons in the nucleus of an atom.
What does an element's mass number tell us?
The mass number tells you the number of Protons and Neutrons in an atomic nucleus.
What does the atomic mass tell us?
it tells us that the number is equal to the number of protons plus the number of nuetrons in the nucleus of an atom
What does atomic mass number tell us?
Type your answer here..The Atomic Mass Unit tells us that ,How heavy a substance as compare to the other.
How many protons does linthium have?
An atom's atomic number tells us its number of protons. Lithium's atomic number is 3. Thus lithium has 3 protons per atom.
How much does a gallon of lithium grease weigh?
Not all types of lithium greases have the same density.For the grease EP-2 an US gallon the mass is 3,293 g.
What is the number of neutrons from a mass number of 10?
Need the atomic number - that would tell us the number of protons and from there the number of neutrons can be calculated. The question as posed does not have enough information to answer.
What does the mass number tell us about and element?
it tells you how much mass is in that object
What is the relationship between atomic number and atomic mass?
The atomic number is the number of protons in the nucleus of an atom. The number of protons in an atom's nucleus determines the chemical identity of that atom. It tells us which element it is. The elemental identity of an atom is determined by the number of protons in that atom's nucleus. This was bit repetitive, but it is a critical concept in chemistry and physics. Atomic Mass might be thought of as the "weight" of an atom. Atomic mass is found by adding up the masses of all the protons, neutrons, and electrons in the atom. As electrons weigh less than 1/1800th of what a proton weighs, they contribute only the smallest amount to the weight of the atom (compared to the protons and neutrons), regardless of which atom it is. These weights are expressed in atomic mass units because the "normal" terms for the expression of weight (mass) are far too large to be "easy to work with" on the atomic scale. Let's do a quick example with the two stable isotopes of lithium. Lithium is element number three on the Periodic Table. It has 3 protons in its nucleus, and 3 is its atomic number. (Repeating, the number of protons in the nucleus is equal to the atomic number, and this identifies the element under investigation.) Lithium has one "version" or isotope that has 3 neutrons. The atomic mass of 3Li is about 6.015 or so. Note: subtracting the atomic number from the atomic mass gives us the number of neutrons in the nucleus of that atom. The 6.015 minus the 3 yields an answer of 3 for the number of neutrons. There is also a lithium atom that has 4 neutrons in its nucleus. It's 4Li and its atomic mass is about 7.016 or so. Same math. Take the 7.016 and subtract the 3 and get 4 as the answer - and the number of neutrons in the nucleus of that atom. Those are the two stable isotopes of lithium. (There are a number of other isotopes of lithium, but they're all unstable and disappear fairly quickly after being made in the physics lab.)
What does the color of the box tell us in the periodic table?
It tells you about the element and what it means. So for example Lithium the color is pink,or blue or whatever it would mean what Lithium means.
Lithium has only two naturally occurring isotopes The mass of lithium-6 is 6.01512 amu and the mass of lithium-7 is 7.01601 amu Use the atomic mass of lithium to calculate abundances mass Li 6.941?
The atomic mass of Lithium is equal to the weighted average of the two naturally occurring isotopes. Let M=the atomc mass of Lithium; M1=the mass of lithium-6;M2=the mass of Lithium-7; %a=the abundance of lithium-6; %b=the abundance of lithium-7. M=(M1*%a+M2*%b)/100 we know that %a and %b must add up to give us 100%, so %a=100-%b. Therefore M=(M1*(100-%b)+M2*%b)/100 Then we just need to solve for %b because everything else is known. M=(M1*100-M1*%b+M2*%b)/100-->M-M1=(-M1*%b+M2*%b)/100 100(M-M1)=(-M1*%b+M2*%b)-->%b=100(M-M1)/(M2-M1)=92.5% Then %a=100-%b=100-92.5=7.5%
What does the mass tell us about a substance?
Go find out hahaha
