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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.
What else can I help you with?
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 forms if the number of neutrons in an atom changes?
Nothing happens to the number of neutrons nor protons. it's just the electron number that changes. If an atom gains electrons, it increases and the ion is negative and vice versa. the number of neutrons or protons DOES NOT CHANGE.
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.
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.
How much neutrons does strontium 90 have?
Ah, strontium 90 is a special element with 52 protons and typically 38 neutrons. It's always good to remember that each element has a unique number of protons and neutrons that make it special, just like how each tree in a forest is unique and important in its own way. Just imagine those neutrons and protons coming together to create a beautiful element, like happy little trees in a painting.
What has the mass number of 41?
The mass number of an element is the total number of protons and neutrons in its nucleus. Given that the atomic number (number of protons) uniquely identifies an element, knowing just the mass number of 41 is insufficient to determine the specific element without additional information.
In what way do all isotopes of an element differ?
just 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.
What are counted in an an atom to determine mass number?
Atomic Mass: protons AND neutrons atomic number: just protons
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.
What forms if the number of neutrons in an atom changes?
Nothing happens to the number of neutrons nor protons. it's just the electron number that changes. If an atom gains electrons, it increases and the ion is negative and vice versa. the number of neutrons or protons DOES NOT CHANGE.
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.
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.
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.
How much neutrons does strontium 90 have?
Ah, strontium 90 is a special element with 52 protons and typically 38 neutrons. It's always good to remember that each element has a unique number of protons and neutrons that make it special, just like how each tree in a forest is unique and important in its own way. Just imagine those neutrons and protons coming together to create a beautiful element, like happy little trees in a painting.
