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Sb Antimony
The isotope of zirconim, 91Zr, has 51 neutrons. 40Zr(91) is a stable isotope with 51 neutronsIts atomic number is 40, and its mean Atomic Mass is 91.22.91.(22) - 40 = 51 neutrons41Nb(92) is an unstable isotope with 51 neutronsNb = NiobiumAtomic number is 41, 92 - 41 = 51 neutrons
protons: 51 electrons: 51 neutrons:70
Protones = 51 Electrones = 49 Neutrones = 70 or 72
For any element, this is answered in the same way. The mass number is the number of protons plus the number of neutrons, in this case 50. The atomic number is the number of protons. Subtract the atomic number from the mass number to give the number of neutrons. For any element, this is answered in the same way. The mass number is the number of protons plus the number of neutrons, in this case 50. The atomic number is the number of protons. Subtract the atomic number from the mass number to give the number of neutrons.
It's Zirconium.
Period 10? Check the spelling !
The isotope of zirconim, 91Zr, has 51 neutrons. In order to solve this problem, one must know that an element's atomic weight is the average of its number of protons and neutrons (only neutrons are variable). Since the atomic number is the number of protons, the atomic number subtracted from the atomic weight gives the number of neutrons. An element in period 5 that has this many neutrons is found to be zirconium (the isotope 91Zr).
Sb Antimony
51
The isotope of zirconim, 91Zr, has 51 neutrons. 40Zr(91) is a stable isotope with 51 neutronsIts atomic number is 40, and its mean Atomic Mass is 91.22.91.(22) - 40 = 51 neutrons41Nb(92) is an unstable isotope with 51 neutronsNb = NiobiumAtomic number is 41, 92 - 41 = 51 neutrons
The element Iodine has 53 protons, 53 electrons, and 74 neutrons
Vanadium Niobium Tantalum
An element's number of protons is the same as its atomic number. Thus, an atom with 51 protons has the atomic number 51. By looking up this element on the periodic table, one finds that it is antimony.
protons: 51 electrons: 51 neutrons:70
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.
28 neutrons