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For a given isotope of an element, the "top number" (e.g. 14C or carbon-14) is the Atomic Mass number, the total of neutrons and protons. The bottom number, if displayed, is the atomic number (e.g. 6C all isotopes of carbon have 6 protons). To find the number of neutrons, subtract the atomic number from the isotopes atomic mass number. Here, 14C will have 8 neutrons, and the result is that it is an unstable radioactive isotope. Many stable elements, however, have many more neutrons than protons.
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The order of element in the periodic table is base on what?
The order of elements in the periodic table is based on their atomic number, which is the number of protons in the nucleus of an atom. Elements are arranged in order of increasing atomic number from left to right and top to bottom on the periodic table.
How many electrons neutrons and protons does Indium have?
So, all you have to look at is at the atomic number of the elements on the periodic table, which it is at the top of the symbol on the P.T, and that is the number of protons and electrons! Now, to find the number of neutrons, you have to find the number at the bottom of the element symbol called the atomic mass no. and you take away that by the top number.
Is the atomic number the top or bottom number?
Its the bottom number E.g. if there was a 35 at the top of.. > Cl and 17 at the bottom of.. > Cl Cl (Chlorine) would have the atomic number 17. This means it would also have 17 protons, 17 electrons and 18 neutrons. i.e 35-17 = 18 which is the number of neutrons :) Ahh the one time i listen in chemistry helps me, AND someone else!! Or atleast i hope i helped.
How do you calculate protons and neutrons?
If you think to the number of protons in an element atom this number is equal to atomic number of this element. The calculation of the mass of the proton and other properties are another questions and problems.
How does the atomic number change as you move left or right of the periodic table?
The atomic number increases by one as you move from right to left across the periodic table. The atomic number represents the number of protons in an atom's nucleus, which increases as you move towards the right due to the addition of more protons in the elements.
How do you determine the no of each subatomic particles?
If you use 24He notation then the bottom number in the number of protons and electrons and the top number minus the bottom number is the number of neutrons
What are the top and bottom numbers of the isotopic notation for carbon 14?
The top number is 14 and the bottom number is 6. The latter is the same for any isotope of carbon, but the top number changes with the number of neutrons in the isotope, because the top number is the mass number, which is defined to be the sum of the numbers of protons and neutrons.
What are the top and bottom numbers of carbon-14?
If you mean the 146C, the bottom number (6) indicates the total number of protons. This is always 6 in the case of carbon. The top number is the sum of protons and neutrons, which for this particular isotope is 14 (i.e., carbon-14 has 8 neutrons).
What is the top number what is the bottom number?
If you are asking about the numbers shown on elements the larger of the two numbers is the Mass Number ( the number of protons and neutrons added together) and the smaller number is the Atomic or Proton Number (the number of protons) Top and bottom are also properties of Quarks along with Up & Down and Strange & Charm Science-teacher
What happens to the atomic number as you move down the alkal metal group?
The atomic number increases, because as you move from top to bottom, you are adding protons to the nucleus, and atomic number is the number of protons.
Why the relative atomic mass of an element in th periodic table in fractional form?
The top left number is the mass (neutrons&protons) and the bottom left number is the atomic number(protons)
Is the proton on the top or bottom of the atom?
The protons are at the center of the atom. An atom does not have a top or bottom.
How do you determine protons?
On a periodic table, each symbol has 2 numbers next to it. The top number is the mass number and the bottom number is the proton number.
How many nuetrons are on an atom?
it depends on which atom it is but you can figure out the number by looking at the periodic table. for example, sodium Na has an atomic mass of 11 (top no.) and a relative atomic mass of 23 (bottom no.), the top number represents the number of protons (and electrons as they are in equal amount) and the bottom number represent the number of neutrons and protons, so, if you take these away from each other you will be left with the number of neutrons the atom has. hope this helps :)
Is the numerator the bottom number or the top number?
the numerator is the top number and the denominator is the bottom number
Is the denominator the number on top or bottom in a fraction?
It is the bottom number the top number is the numerator :)
On a periodic tableprotons increase?
As you move from left to right on rows, or across periods and top to bottom, or down a group, the number of protons increases.
