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How do you figure out the number of protons neutrons and electrons in ions and isotopes?
Wiki User
∙ 9y ago
In general, there are two defining numbers for all elements and their isotopes: the mass number, and the atomic number. These are usually denoted as follows when an element is written:
AZ X
where A is the mass number, Z is the atomic number, and X is the symbol for the element in question (note that the A and Z would normally be aligned, not offset). The mass number, A, is the sum of the protons and neutrons in the element. The atomic number, Z, is the number of protons only. On the Periodic Table, elements are arranged by atomic number. In this case we see that Carbon is element 6, and so it had 6 protons. The number of neutrons alone can be easily calculated by subtracting the atomic number from the mass number, so that
N=A-Z
where N is the number of neutrons. The number of electrons in a given element, isotope, or ion, can be easily determined as well. In neutral isotopes, the number of negatively-charged electrons must balance the number of positively-charged protons. Since the number of protons is given to us by the atomic number Z, this must also be the number of electrons. In ions, the plus or minus charge denoted tells us the overall charge of the species in question, and thus the lack or excess of electrons. A species with a +2 charge would have two less electrons than expected, while a -1 charge would mean one excess electron.
Wiki User
∙ 14y ago
Wiki User
∙ 14y agoThe number of protons is the same for every isotope. It is the number of protons that determines the chemical element. You can determine it by subtracting the number of nerutrons from the number of nucleons.
Wiki User
∙ 14y agoTo find the amount of neutrons, you subtract the mass of the element and the periodic number. An isotope, however, will usually have the amount of extra neutrons next to it.
Example:
K+3
Wiki User
∙ 12y agoThe atomic number will tell you how many electrons, neutrons, and protons there are in any given element. Carbon, however, does not always follow this rule. Some isotopes have been made with 6 electrons, neutrons, and protons, but there are some with 8 neutrons.
Wiki User
∙ 14y agothe no.of electrons and protons are same in an isotope and only mass changes which is due to increase in no. of neutrons.
no. of protons=no. of electrons=atomic no.
no. of neutrons=mass of isotope- no. of protons
Wiki User
∙ 9y agoThe number of protons is equal to the atomic number.
The number of neutrons = Mass number of an isotope - Number of protons
Wiki User
∙ 7y agoThe number of protons remain unchanged.
The number of neutrons is different for each isotope.
The number and charge of ions are different for each ion.
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How do you figure the mass of an atom?
You add up the mass of the protons, neutrons, and electrons. Protons and Neutrons having an atomic mass of 1, and electrons having an atomic mass of roughly 1/1800.
How do you figure out protons electrons neutrons?
Find the atomic number. That tells you the number of protons and electrons (in a neutral atom). Then find the atomic weight. The number of protons plus the number of neutrons will equal the atomic weight. So if you know the wt. just subtract the number of protons and you will have the number of neutrons.
What is the number of protons plus the number of electrons?
The number of protons plus the number of electrons isn't a recognized figure in chemistry. The number of protons is the atomic number of an element. The number of electrons is the same as the number of protons except when the element is an ion. An ionic compound results in one or more electrons moving from one element to another element. Although this is a simplification, it can be described as the atom gaining or losing electrons. The number of protons plus the number of neutrons is the atomic weight of an element.
How does one isotope differ from another isotope of the same element?
Isotopes of an element have a different number of neutrons. For example Uranium-235 and Uranium-238 look chemically identical but 238U atom is slightly more massive due to the three extra neutrons.
What is the difference between carbon-12 and carbon-14?
C 14 and C 12 are both isotopes of carbon. Since they are the same element, both of these isotopes have the same number of neutrons. However, C 12 has 6 neutrons and is stable whereas C 14 has 8 neutrons and is radioactive.
How many protons and neutrons isotopes of oxygen?
Oxigen has 8 protons; natural isotopes have 8, 9 an 10 neutrons.
How do you figure the mass of an atom?
You add up the mass of the protons, neutrons, and electrons. Protons and Neutrons having an atomic mass of 1, and electrons having an atomic mass of roughly 1/1800.
How do you figure out protons electrons neutrons?
Find the atomic number. That tells you the number of protons and electrons (in a neutral atom). Then find the atomic weight. The number of protons plus the number of neutrons will equal the atomic weight. So if you know the wt. just subtract the number of protons and you will have the number of neutrons.
How many neutrons are in the atom chlorine?
Every chlorine atom has 17 protons; 17 is the atomic number of chlorine. However, chlorine has two isotopes that are stable against radioactive decay. These have mass numbers of 35 and 37, which have 18 and 20 neutrons respectively.
How many protons neutrons and electrons in 40Ca plus 2?
I don't want to do your homework for you. Here's how you figure it out: Protons = atomic number Neutrons = atomic mass - atomic number Electrons = atomic number + ionization
How many neutrons does nobelium have?
157; you figure that out by taking the atomic mass (259) and subtract it by the # of protons (102) and the answer is the # of neutrons. ( the atomic #, # of protons, and # of electrons are always the same # 102 ). But each isotope of nobelium has a different number of neutrons, depending on the atomic mass.
How do you figure out the number of neutrons in a isotope?
Let the N be the atomic No. and M be the mass No.The No. of Electrons=No. of Protons=NThe No. of Neutrons=M-N
How many protons and electrons and neutrons in carbon?
6 of each in a neutral (non-ion) atom. The carbon atom contains 6 protons. The number of electrons in any element can vary. These atoms are called ions, where the atoms may lose or gain electrons.
What is the number of protons plus the number of electrons?
The number of protons plus the number of electrons isn't a recognized figure in chemistry. The number of protons is the atomic number of an element. The number of electrons is the same as the number of protons except when the element is an ion. An ionic compound results in one or more electrons moving from one element to another element. Although this is a simplification, it can be described as the atom gaining or losing electrons. The number of protons plus the number of neutrons is the atomic weight of an element.
How many protons neutrons and electrons does sodium ion contain?
The simplest way to figure this out is as following: the atomic number of sodium is 11, which gives you the number of protons. The number of electrons = the number of protons. The number of neutrons is the atomic weight (22.98 in this case) rounded minus the number of protons. Therefore sodium has 11 protons, 11 electrons, and 12 neutrons. Hope this helps! :)
How does one isotope differ from another isotope of the same element?
Isotopes of an element have a different number of neutrons. For example Uranium-235 and Uranium-238 look chemically identical but 238U atom is slightly more massive due to the three extra neutrons.
What is the difference between carbon-12 and carbon-14?
C 14 and C 12 are both isotopes of carbon. Since they are the same element, both of these isotopes have the same number of neutrons. However, C 12 has 6 neutrons and is stable whereas C 14 has 8 neutrons and is radioactive.
