The atomic number of yttrium (Y) is 39.
The atomic weight of Y is 88.906 grams per mole.
See the Web Links to the left of this answer for a periodic table with more information about this element!
Yttrium has 50 neutrons. To find the number of neutrons, subtract the atomic number (39) from the atomic mass (89): 89 - 39 = 50 neutrons.
Yttrium (Symbol Y)
The number of neutrons in an atom can be calculated by subtracting the atomic number (protons) from the atomic mass. In this case, for the isotope of yttrium with an atomic number of 39 and an atomic mass of 89, the number of neutrons is 50 (89 - 39 = 50).
The transition metal with 39 protons is Yttrium (Y), which has chemical symbol Y and atomic number 39.
Look at the atomic number. That will be the number of protons and electrons; subtract that number from the atomic mass (rounding down) and you'll have the number of neutrons.
Yttrium's atomic number is 39, meaning that it always has 39 protons in its nucleus. This is, in fact, all that we know for sure about yttrium unless we are given the mass number, which is the total number of protons and neutrons in its nucleus, of a specific yttrium isotope. Thirty-two different yttrium isotopes, ranging in mass number from 77 to 108, have either been found or synthetically produced. Therefore, the number of neutrons in an yttrium atom could be anywhere from 38 to 69. Yttrium's only stable isotope, 89Y, has 50 neutrons.
Yttrium has 50 neutrons. To find the number of neutrons, subtract the atomic number (39) from the atomic mass (89): 89 - 39 = 50 neutrons.
Yttrium (Symbol Y)
There is no widely recognized symbol for yttrium. Yttrium is a chemical element with the symbol Y and atomic number 39.
The atomic number is the count of how many protons an atom has in its nucleus (and therefor also the count of how many electrons the neutral atom possesses). The atomic number us unique for each element and positions the element in the periodic table. The element with atomic number 39 is Yttrium (Y).
The atomic number of an element tells us that atom's number of protons. If the atom is neutral, its number of protons is going to equal its number of electrons. Thus, we need only find the element with the atomic number of 39, which is yttrium.
The number of neutrons in an atom can be calculated by subtracting the atomic number (protons) from the atomic mass. In this case, for the isotope of yttrium with an atomic number of 39 and an atomic mass of 89, the number of neutrons is 50 (89 - 39 = 50).
Yttrium's atomic number is 39, therefore there are 39 electrons in it.
The transition metal with 39 protons is Yttrium (Y), which has chemical symbol Y and atomic number 39.
Look at the atomic number. That will be the number of protons and electrons; subtract that number from the atomic mass (rounding down) and you'll have the number of neutrons.
Yttrium is the largest metal in group three. It is atomic number 39 and has an atomic mass of about 88.9.
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