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An atom with an atomic number of 9 and a mass number of 19 would have an atomic mass of what?
To find the atomic mass, subtract the atomic number (protons) from the mass number (protons + neutrons). Atomic mass = Mass number - Atomic number Atomic mass = 19 - 9 Atomic mass = 10amu So, an atom with an atomic number of 9 and a mass number of 19 would have an atomic mass of 10 atomic mass units (amu).
How many electrons does an element have if it has 17 protons and 18 neutrons?
If an element has 17 protons, it will also have 17 electrons since atoms are electrically neutral. Adding the number of neutrons (18) to the number of protons (17) gives us the mass number of the element, which in this case would be 35.
What is the number of protons in a atom of an element?
The number of protons in an element is equal to the atomic number. (dont mix this up with atomic mass. It is simply the large number that appears usually in the top left hand corner on the periodic table. For example, Lithium has 3 protons. Sulfur has 16 protons and so forth)
What is 1 proton 2 neutrons?
<P>proton + neutrons give you a nucleon. the nuceon(or protons +neutron) give you the overall mass of the atom. the mass of electrons is not included, i dont even think that it has mass at all. Hope you're answered?</P>
What is the average atomic mass of the element y?
youm dont
How can you tell how many neutrons are in an element?
The number of neutrons in an element is determined by subtracting the atomic number from the atomic mass number rounded to the nearest whole number. On the other hand, very few atoms are abnormal and have a different amount of neutrons than other atoms of the same element. These are called isotopes and are indicated by a number following the element symbol (eg. C-14). This is a radioactive isotope of carbon that has six protons based on the atomic number and two more neutrons than normal--8. (8+6=14). Finally, the reason that the atomic mass units end in decimals is that this is just an average weight. The isotopes can either bring this number up or down. atomic number [ 6 ] symbol [ C ] mass (atomic mass units (amu)) [ 12.01 ]
The number of neutrons in an atom is determined by what?
it's atomic mass- e.g weight in protons and neutrons, electrons weigh virtually nothing The number of nucleons (protons and neutrons) provides the number of the isotope. For example, 3H, called hydrogen-3 or tritium, has very nearly the same mass, and exactly the same isotope number, as 3He, or helium-3.
What happens to the atomic number and the atomic mass has the same number of protons but different number of neutrons?
i dont think this question makes sense
An atom with an atomic number of 9 and a mass number of 19 would have an atomic mass of what?
To find the atomic mass, subtract the atomic number (protons) from the mass number (protons + neutrons). Atomic mass = Mass number - Atomic number Atomic mass = 19 - 9 Atomic mass = 10amu So, an atom with an atomic number of 9 and a mass number of 19 would have an atomic mass of 10 atomic mass units (amu).
How many protons electrons and neutrons are there in an atom that has an atomic number of 8 and a mass of 15?
Learn that the atomic number means the number of protons. The mass number is the number of protons and the number of neutrons. So if we take the number of protons from the mass number then we get the number of neutrons that are present (mass umber - atomic number = number of neutrons). in this case 15 - 8 = 7. Since you dont mention there is any charge on the atom ill assume that its charge is neutral. For an atoms charge to be neutral then the positive charges from protons must equal the negative charges from electrons and vica versa. So for this to be the case with 8 protons then we must have 8 electrons.
What is the number of protons in a atom of an element?
The number of protons in an element is equal to the atomic number. (dont mix this up with atomic mass. It is simply the large number that appears usually in the top left hand corner on the periodic table. For example, Lithium has 3 protons. Sulfur has 16 protons and so forth)
How many electrons does an element have if it has 17 protons and 18 neutrons?
If an element has 17 protons, it will also have 17 electrons since atoms are electrically neutral. Adding the number of neutrons (18) to the number of protons (17) gives us the mass number of the element, which in this case would be 35.
The is determined by the number of protons in an atom?
The number of protons in the nucleus of an atom is known as the atomic number, which determines the chemical element, essentially different numbers of protons mean change the element you are looking at and hence the properties and reactions of that element.
What is Phosphorus's mass number?
i dont know if u what u meant but here's this Atomic Number: 15 Atomic Mass: 30.97376
How many protons does 26 this element have?
26 but its atomic mass may be different, dont get them confused
What is the mass number of a fluorine atom with 8 neutrons?
The atomic number is nine, because there are 9 protons. The mass number is 19, because an element does not have a charge, unless it forms to an ion. Therefore, if protons and neutrons have an amu of 1, the equation is as follows: Mass number (19)- Atomic number (9)= 10. There are 10 Neutrons and 9 protons.
What is 1 proton 2 neutrons?
<P>proton + neutrons give you a nucleon. the nuceon(or protons +neutron) give you the overall mass of the atom. the mass of electrons is not included, i dont even think that it has mass at all. Hope you're answered?</P>
