Mass Number

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Questions

• How do you find mass number of an isotope?
• What does the difference between the mass number and the atomic number tell us?
• Why is mass number a decimal?
• What type of radioactive decay produces no change in mass number?
• How is the mass number written?
• What is the nucleon number?
• What is mass number equal to?
• What does the mass number tell us?
• How is mass number related to isotopes?
• How is the atomic mass number changed by gamma decay?
• How does mass number relate to the particles in the atom?
• How can the mass number be calculated?
• Does the mass number of an element ever change?
• What are common mistakes students make with mass numbers?
• What is mass number?
• Question #ce59d
• All the atoms of a particle element have an equal number of protons and neutrons (Z=N). Which one is true? A) The atomic weight must be a whole number. B) The mass number must be exactly twice the atomic number for each atom.
• Question #d4d86
• Question #2f9e6
• Question #32808
• What is the difference between atomic mass and mass number?
• What is the difference between mass number and atomic number?
• What is the mass number of potassium?
• What is the mass number of gallium-68?
• Does an atoms mass number or atomic number ever change?
• What is the mass number of zinc?
• A carbon isotope consists of 6 protons, 6 electrons and 8 neutrons, what is the mass number?
• An atom of a sodium has 11 proton, 11 electrons, and 12 neutrons, what is its mass number?
• An element has 5 protons, 6 neutrons, and 5 electrons. What is the mass number?
• How would you calculate the mass number of an atom?
• What element has a mass number of 65?
• Would you find the number of electrons when given atomic number, mass number, and number of protons and neutrons?
• What is the mass number of oxygen?
• What is the mass number and the atomic number of Boron-11?
• What is the mass number of an ion with 105 electrons, 158 neutrons, and a +1 charge?
• As an atom becomes an ion, what happens to its mass number?
• How many protons, neutrons, and electrons does a magnesium atom with a mass number of 25 contain?
• What element has a mass number of 55?
• The element calcium has the atomic number of 20 and the mass number of 40, how many neutrons does it have?
• What is the mass number of an ion with 104 electrons, 157 neutrons, and a +1 charge?
• What determines the mass number of an element?
• What is a rule for determining the mass number of an atom?
• An isotope of U-235 has 92 protons in its nucleus. How many neutrons are there in the nucleus of a U-238 isotope?
• How do we know what atomic number an element has???
• What is the mass number for Technetium when the atom has 56 neutrons?
• How many protons does a sodium atom have?
• Question #3ae92
• What is the mass number of a Calcium atom if it has 20 neutrons?
• How many neutrons are in an atom of chlorine?
• How is the mass number related to the number of protons and neutrons an atom has?
• Question #ef268
• What is the mass number of boron?
• Question #5ccda
• What is the mass, in grams, of a single iridium atom (#m_Ir = "192.22 u"#)?
• How many neutrons are present in the nucleus of a phosphorus atom?
• Why isn't mass number listed with each element on the periodic table?
• How many protons, neutrons, and electrons are in a silver atom, with a mass number of 108?
• Question #83972
• #"Isotopes A"# and #"B"# EACH have six protons. #A# has six neutrons, and #B# has eight neutrons. What are the charges of each isotope?
• How do you calculate the atomic mass number of an element?
• Question #3c657
• A positive two ion of calcium, #Ca^(2+)# would have how many protons, electrons and neutrons?
• An atom contains 70 protons, 70 electrons, and 99 neutrons. What is the mass number?
• An element has atomic number 10 and an atomic mass of 20. How many neutrons are in the atom of this element?
• What are the numbers of protons, neutrons, and electrons in an isotope of titanium with a mass number of 50?
• How many protons are in an atom represented by #""_88^220Ra#?
• Which element has 16 neutrons, 15 protons, and 15 electrons?
• What is the formula mass of #Ca(OH)_2#?
• Are atomic mass, formula mass and molar mass the same thing?
• What is the formula mass for #C_6H_12O_6#?
• What is the formula mass for the following compound #C_6H_12O_6#?
• What is the formula mass for the following compound #Fe(NO_3)_3#?
• For #Al#, its atomic number is 13 and its mass number is 27. How many neutrons does it have?
• How many neutrons in #""^14CH_4#?
• Question #14558
• How many neutrons does #Fe# have?
• How many protons, neutrons, and electrons are in a neutral atom of sodium?
• How many neutrons are in #""^239 Pu#?
• The mass number of common krypton is 84, and its atomic number is 36. krypton-84 has how many neutrons within each isotope?
• The atomic mass of potassium is 39. If its atomic number is 19, how many neutrons are in each potassium atom?
• Zirconium has an atomic number of 40 and an atomic mass of 91. How many neutrons does it have?
• How many protons, electrons, and neutrons does a neutral atom of an element with atomic number 48 and mass number 120 contain?
• How many protons and neutrons are in an atom of Mo-94?
• What is the mass number of an atom of potassium that has 18 neutrons?
• If an atom contains 12 protons and 10 neutrons, what's its mass number?
• The mass number of a chromium atom is 52 and it has 24 protons. How many neutrons does this atom have?
• Question #0a5fe
• Question #a8865
• What species is represented by the following information? #p^+ = 14#, #n^o = 12#, #e^(-) = 10#
• What is 206 Pb mass number?
• What is the element with a mass number of 222?
• What element has a mass number of 40 and 20 protons?
• What element has a mass number of 40?
• What element has atomic number of 9?
• What element has mass number of 4?
• An atom of copper has a mass number of 63 and an atomic number of 29. How many protons does it have?
• An atom has 13 protons and 14 neutrons. What is its mass number?
• Question #e5346
• Which corner of the isotope symbol contains the mass number?
• How is the mass number of an isotope expressed in the name of an atom?
• If you had a balance that could determine the mass of a proton, how many electrons would need to weigh a on the same balance to measure the same mass as a single proton?
• Question #06bb1
• What is the mass number of an atom that has an atomic number of 8 and 9 neutrons?
• Question #e7b81
• How many neutrons in the iron nucleus?
• When the mass number of oxygen is 16, how many neutrons does oxygen have in its nucleus?
• What is the average of the mass numbers of the isotopes of an element called?
• Question #37196
• What are the protons, neutrons, and electrons for a sulfur(2-) anion with a mass number of 33?
• Question #8d740
• What is the nuclear charge of an element?
• Question #a5065
• A 12. 2 g sample of X reacts with a sample of Y to form 78.9 g of XY. What is the mass of Y that reacted?
• How would you place these in order of greatest mass at the bottom and least mass at the top?
• What is the mass number of an atom which contains 28 protons, 28 electrons and 34 neutrons?
• A certain atom has 26 protons, 26 electrons, and 30 neutrons. What is its mass number?
• What is the the theoretical mass of tin formed from 302 g of tinstone?
• Question #29f82
• What is the total mass of 1.5 moles of H(g)?
• For a given atom, what is the mass number?
• Question #700fe
• The ion #"X"^(3-)# has #8# neutrons and its electron configuration ends up with #2p^6#. Find its mass number. [I can't find it, can someone please explain it to me?]
• What does the sum of the protons and neutrons in an atom equal?
• Question #dae51
• Question #0139f
• Inflated ball mass? cold air vs worm air?
• Question #021e1
• Question #5d492
• What is the #"mass number"# of an atom?
• Question #8eb40
• What is the mass-to-charge ratio of electrons?
• How do we find the number of neutrons in a nuclide, given #Z#, and the isotopic mass?
• How many protons in the #P_4# molecule?
• Question #db655
• What is the mass of an atom that contains two positively charged nuclides, and two neutrally charged nuclides? What is the atom?
• How many electrons, protons, and neutrons in the #""^67Zn# isotope?
• How do find the number of electrons, protons, and neutrons given a specific element?
• Question #4b778
• Question #22638
• How does lithium metal react with dinitrogen? And what is the electronic distribution with respect to the ions in the resultant salt?
• A certain negative ion #"X"^(2-)# has #18# neutrons in its nucleus and #18# electrons in its extra-nuclear structure. What is the mass number of the most abundant isotope of #"X"# ?
• A nuclide has 20 electrons and a positive charge. There are 18 neutrons. What is the nuclide?
• How many neutrons in an #""^238U# atom?
• What mass of silver (Ag) contains the same number of atoms as 50.6 g of boron (B)?
• Why is the mass number an integer but the relative atomic mass is not?
• How to identify curium mass number?
• Question #4d66b
• What is the isotopic distribution of gallium metal?
• How many neutrons are in a nucleus that has 45 protons and a mass number of 160?
• Question #4e40c
• What is the formula weight of methane?
• Question #e231f
• Can u name the 11 atom structure? thanks