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It is the number of protons alone that determines elemental identity. Period. Different atoms of the sameelement can have different numbers of isotopes, called isotopes, but the nature of the element itself - its chemical identity - is determined by the number of protons in the nucleus. Only that.
Wiki User
∙ 15y ago
Wiki User
∙ 13y agoIt is not very easy to identify an element just from its neutrons because the same element can have different atoms. You can get a rough idea about which element it is from a neutron number, but you can't be certain.
For Example, 99% of the Carbon on Earth has 12 neutrons, but it can also have 13 and 14.
Wiki User
∙ 11y agoYes. The number of protons is the atomic number of an element and is unique to each element.
Wiki User
∙ 13y agoThe number of protons determines the element.
Wiki User
∙ 11y agoIt is the number of protons that defines an element.
Wiki User
∙ 9y agoNope. You gotta know the number of protons, and often electrons.
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How many neutrons are in the nucleus of the isotopes of aluminum-25?
The atomic number of aluminum is 13, therefore there will be 13 protons.The number of neutrons equals the mass number minus the atomic number. For aluminum-25, that will be 25 - 13 = 12 neutrons.There will be 13 electrons in the neutral atom of aluminum, regardless of which isotope we are considering.
What is different about the atom of an isotope?
The atoms of an isotope of one particular element are different from other isotopes of the same element because their atoms have a different number of neutrons.
Isotopes can have the same what?
Isotopes of an element have the same numbers of protons in the nucleus (and corresponding electrons). It's not so much "can have", as "do have". It's just a different number of neutrons that makes a different isotope.
What is the mass number of an element that consists of 6 protons 6 electrons and 8 neutrons?
Just add the protons and the neutrons. The answer is 14.
Why do isotopes of an element have the same chemical properties?
Chemical reactions involve electrons - not protons or neutrons. All isotopes of the same element have an identical number of electrons (just the number of neutrons differs) and hence the chemical properties are identical/very similar.
In what way do all isotopes of an element differ?
just number of neutrons
What are counted in an an atom to determine mass number?
Atomic Mass: protons AND neutrons atomic number: just protons
What is different about the atom of an isotope?
The atoms of an isotope of one particular element are different from other isotopes of the same element because their atoms have a different number of neutrons.
How many neutrons are in the nucleus of the isotopes of aluminum-25?
The atomic number of aluminum is 13, therefore there will be 13 protons.The number of neutrons equals the mass number minus the atomic number. For aluminum-25, that will be 25 - 13 = 12 neutrons.There will be 13 electrons in the neutral atom of aluminum, regardless of which isotope we are considering.
Isotopes can have the same what?
Isotopes of an element have the same numbers of protons in the nucleus (and corresponding electrons). It's not so much "can have", as "do have". It's just a different number of neutrons that makes a different isotope.
What is the mass number of an element that consists of 6 protons 6 electrons and 8 neutrons?
Just add the protons and the neutrons. The answer is 14.
Why is it impossible for the atomic number of element to be greater than its mass number?
The atomic number of an element is the number of protons in the nucleus of that element (and in any isotope of that element). The mass number of an element is the number of protons plus the number of neutrons in the nucleus of that element (and that number will differ for each isotope of that element). In any given element (save hydrogen) there are always one or more neutrons in the nucleus. As the atomic number is just the number of protons, it will always be less than the number of protons plus the number of neutrons. Always. The "outcast" is hydrogen. Most hydrogen has just a single proton in the nucleus. That means for those atoms of hydrogen, the atomic number (number of protons) and the mass number (number of protons plus the number of neutrons) will be one. (Recall that there are no neutrons in "regular" hydrogen.) Hydrogen does have two other isotopes. One has one neutron and the other has two neutrons. The atomic number for each of those two isotopes is still one, but their mass numbers will be two and three, respectively.
How many neutrons are in the atom of Hydrogen?
The number of neutrons in a hydrogen atom will depend on which isotope of hydrogen we consider. Not all hydrogen atoms have the same number of neutrons. The vast majority of hydrogen atoms (over 99.98%) have no neutrons at all. Some have 1 (and this is called deuterium) and some have 2 (called tritium). These two isotopes occur naturally but are rare, as can be seen.To determine the number of neutrons in an atom, you must use the mass number, which is the sum of the number of protons and the number of neutrons. Since the atomic number of the element (for H, the atomic number is 1) tells you the number of protons, you can find the number neutrons by subtraction.See the Related Questions to the left for how to count the number of protons, neutrons and electrons in any atom of any element.
Do isotopes of the same element differ in mass number?
isotopes just mean they have a different number of neutrons so if the..Mass number = # of protons + # of neutrons -they will have a different (greater) mass
What determines the identity of an atom the number of protons the number of neutrons or the number of quarks?
mostly protons, the neutrons will affect it but it would still be the same element, just a different isotope.
What is the iodine number of neutrons?
Just about any element has more than one isotope - meaning that the number of neutrons can vary for one and the same element. For more details, look up "iodine" in the Wikipedia, and go to the section "Isotopes".
How many protons does and atom with and atomic number of 23 and a mass number of 51 have?
23 Protons and 28 Neutrons. The atomic number is always equal to the number of protons in an element. The element is vanadium (symbol V). Any atom with 23 protons is be vanadium, but some vanadium atoms will have more or less than 28 neutrons. The mass number is the sum of the number of protons and neutrons together, and this can vary for the same element (called isotopes). To find the number of neutrons, just subract the atomic number from the mass number.
