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What was the atomic mass unit system devised to make?
The atomic mass unit system was devised to accurately describe the mass of atoms and subatomic particles on a consistent scale. It provides a unified standard for expressing relative atomic masses of elements based on the carbon-12 isotope.
Is atomic number the number of protons and neutrons?
No, the atomic number is the same number of protons and electrons. To find the neutrons, you subtract the atomic weight by the atomic number. Make sure to round the atomic weight as well.
what a metal alloyed with iron to make tough steels?
Manganese - Mn Atomic Weight - 54.9380 Atomic # - 25
Which two subatomic particles make up the atomic weight of an atom of an element?
Protons and neutrons make up the atomic weight of an atom. Protons have a positive charge and are found in the nucleus, while neutrons have no charge and are also located in the nucleus. The total number of protons and neutrons determines the atomic weight of an atom.
What is the name of the element with lowest atomic weight?
Hydrogen. It has one proton and one neutron--you can't make an atom lighter than that.
What two parts of the atom make up the atomic weight of the atom?
The protons and the neutrons.
What is the sub-atomic weight of 1 ounce cheese?
The sub-atomic weight of 1 ounce of cheese would be the combined weight of all the sub-atomic particles (protons, neutrons, and electrons) that make up the atoms in the cheese. This weight would be extremely small and not typically measured or relevant in everyday situations.
What elements do helium make up?
The only element helium makes up is helium. Atomic number: 2 Atomic weight 4.00260 u (avg)
Is the atomic weight of chlorine 35.5 because of electrons?
No, electrons only make a negligible contribution to atomic weight. On the periodic table the atomic weight listed for most of the elements is the average of that element's isotopes. Chlorine has 2 common isotopes: Chlorine-35 (75.77% of all chlorine) and chlorine-37 (24.23%) This works out to an average mass of about 35.5.
What two words make up the name of a species in linnaeus naming system?
The two word system that was devised for naming organisms is called "binomial nomenclature." "Binomial" is defined as "two names." ~ Kimberlee
Why are the Romans famous for their construction?
They seemed to be ahead of their time. They were able to make an early version of a plumming system. They also devised hot and cold baths. These were things unheard of at the time.
Which particles account for the difference between the atomic number and the mass number?
The answer is that it is neutrons that account for the difference between atomic weight and atomic number. The atomic number is the number of protons or the number of electrons in the atom, since they are normally equal. The atomic weightis the sum of the total number of protons, electrons AND neutrons in the atom. Knowing both the atomic number and the atomic weight of an atom lets you know the number of neutrons in the atom (the isotope). Example: Uranium, Atomic Number 92, Atomic Weight 235. The atomic number tell you that the uranium atom has 92 protons and 92 electrons. The atomic weight tells you that it has a combined total of 235 protons, electrons and neutrons. Since you know from the atomic number that there is a total of 184 protons and electrons in the atom (92 + 92) and from the atomic weight that the total number of protons, electons and neutrons is 235 (92 + 92 + X = 235), you now know that there are 151 neutrons in that uranium atom. The atomic number and atomic weight together tell you that the uranium atom 235 has 92 protons, 92 electons and 151 neutrons.
