What does atomic mass unit mean?Parts of an Atom:Atoms are the smallest unit of matter that still contains all of the properties of a specific chemical element. Atoms are made of a nucleus made of particles called protons and neutrons, and electrons that orbit the nucleus in a cloud....
The proton number in the nucleus decides an element's atomic number and position in the modern periodic table. Answer and Explanation: (a) The average atomic mass represents the number of atoms present in the pile of an elem...
An atom is the smallest possible amount of a chemical element—so an atom of gold is the smallest amount of gold you can possibly have. By small, I really do mean absolutely, nanoscopically tiny: a single atom is hundreds of thousands of times thinner than a human hair, so you have ...
In an element, the numbers of electrons and protons are equal. Moreover, since they have opposite charges, they cancel each other out and keep the atom neutral. The total number of protons present in the atom of a substance is known as theatomicnumber. Atomic mass refers to a weighted ...
As far as anyone knows, only elements with atomic numbers of 1 through 94 — hydrogen through plutonium — exist in nature1. Anything 95 and above has to come from a reactor or particle accelerator. During the early 2000s physicists at Russia’s Dubna facility began generating element 118, ...
Q: What do you think is the biggest misconception about Visual Studio 2005 that your team will have to work hard to dispel post-launch? A: This is a good question! Unfortunately, I haven't really thought about this a ton -- so I am going to punt and ask you -- what do you think...
1.how are the atomic numbers and the atomic masses of the elements related to how the elements are arranged on the periodic table?2.how does the number of electrons relate to the arrangement what is the different in the number of electrons in a 3rd period element and the 2nd period ...
What two things determine the average atomic mass of an element? How to find the average atomic mass? Explain the difference between average atomic mass units and mass numbers. An element, X has the following isotopic composition: X-200,90% X-199, 8.0% X-20...
Examples:The atomic number of the first element, hydrogen, is 1. The atomic number of copper is 29. Element Atomic Mass or Atomic Weight Most periodic tables include a value for atomic mass (also calledatomic weight) on each element tile. For a single atom of an element, this would be ...
Because protons are units of matter, atomic numbers are always whole numbers. At present, they range from 1 (the atomic number of hydrogen) to 118 (the number of the heaviest known element). As more elements are discovered, the maximum number will go higher. Theoretically, there is no maxi...