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No. The atomic number only counts the number of protons or electrons in an atom, but the mass number counts at least the number of protons, sometimes the electrons and the number of neutrons if any. The closest they will get is being the same (Hydrogen with AN=1, MN=1), but the mass number will almost always be bigger than the atomic number.
What else can I help you with?
Has human ever seen a single atom?
No, humans have not directly seen a single atom because they are smaller than the wavelength of visible light, making them impossible to observe with optical microscopes. Scientists have used techniques such as scanning tunneling microscopes to create images and manipulate individual atoms.
How many of the first twenty elements in the periodic table have isotopes?
19 ------------------------------------------- Actually all elements have isotopes. Isotopes are atoms that have different amount of neutrons. If you ever notice the atomic mass of an atom, it is the average atomic mass of all isotopes. If an atom had no isotope then that number would be an integer.
What is the old word for atomic no 7?
"Old" name? I wasn't aware there was a new name; it's been nitrogen pretty much ever since it was discovered.
Does the number of protons of carbon ever change?
No, the number of protons in an atom of a specific element like carbon does not change. Carbon always has 6 protons.
Who saw an atom first time?
Ernest Rutherford and his colleagues were the first to observe the atomic nucleus in 1909 through their famous gold foil experiment. They discovered that atoms are mostly empty space with a small, dense core at the center.
What atom has the atomic number 6?
You could look it up by just typing it into google (Just in case you ever need to know..) Carbon: C Atomic number: 6 (number of protons in nucleus) Atomic mass: 12.011 a.m.e. Mass number: 12 (=number of protons + neutrons in nucleus) Nonmetal
What can be determined if you know the atomic number of an electrically neutral atom?
The number of electrons can be determined if the overall charge and number of protons are known. If the charge of an atom is neutral, then how ever many protons it has it will also have that number of electrons.
What is the biggest atomic number?
The atom discovered with the highest atom number = number of proton = number of electrons Note that some negative ions might be bigger. The biggest element so far discovered is 294Uuo (Ununoctium, element 118), a superheavy transactinide element. Only a small number of atoms of this element have ever been produced. The caesium atom with an empirical radius of 260 pm.
Could an atom ever have a higher atomic number then a mass number?
No, atomic number (z) is always bigger or at least equal to mass number (m). (If there were NO neutrons (n=0): z=p=m-n=m-0=m , ie. Hydrogen with p=1, n=0, z=m)
What element has the atomic number of 168?
The element with the highest atomic number is Ununoctium (total quantity that has ever existed: three atoms), and its atomic number is 118. Thulium has an atomic weight of 168.9342.
What part of the atom contains the least atomic mass?
Electron. Contains basicaly no mass what so ever.
Do hydrogen and oxygen have the same number of electrons?
NO! No atom of one element ever has the same atomic number as an atom of a different element, because atomic number is the property that characterizes an element and distinguishes it from all other elements.
How many neutrons are in an atom with an atomic number of 3?
The elemnt with atomic number 3 is Lithium. There is no easy way of determining how many neutrons are in an atom, in Lithium there are two stable isotopes, 6Li with 3 neutrons and 7Li with 4. The most common is 7Li. If you ever have to guess because you dont have access to Wikipedia or a table of the elements which shows the different isotopes, there are often the same number of neutrons as protons in stable isotopes.
Is splitting an atom exothermic?
yes, have you ever seen an Atomic Bomb blast! Well that is the splitting od atoms.
What is the scientific definition for an atom?
The smallest particle that can ever be found, it cannot be broken down in to anything smaller
What was lithiums atomis number?
Li is atom number three, not only 'was' but it still is and ever will be.
What is the atomic number for P?
Well, isn't that a happy little question! The atomic number for P is 15. That's the number of protons found in the nucleus of a phosphorus atom, creating a beautiful balance in the world of chemistry. Just like adding a touch of color to a painting, every element has its place and purpose in the grand design of the universe.
