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Carbon is the element with mass 12. It has 6 neutrons.
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∙ 9y ago
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How do you tell how many neutrons are in an atom with the atomic number of 12?
Mass number is needed to answer this correctly. Mass number = number of protons + number of neutrons
how many neutrons in magnesium?
The "25" is the mass number, which is the sum of the number of neutrons and protons. We don't know how many neutrons there are, but we do know how many protons magnesium has. The atomic number of an element is the same as the number of protons, so locating a Periodic Table, magnesium is number 12, which means 12 protons. If mass number = number of protons + number of neutrons, then number of neutrons = mass number - number of protons (or atomic number). So 25 - 12 = 13 neutrons in 25Mg.
How many neutrons are in magnesium 25?
25 is the number of protons and neutrons added together. The atomic number of Mg is 12 which is the number of protons. So 25 - 12 = 13 neutrons.
How many neutrons does carbon have if it has a Mass Number of 12?
The isotope carbon-12 has 6 neutrons.
How many neutrons are present in a magnesium atom with a mass number of 24?
12 neutrons. Since the atomic number of Mg is 12 (which means Mg atom has 12 protons, and 12 electrons) and the mass number of the isotope is 24 (which means 24 nucleons, or 24 protons and neutrons in total), we derive the number of neutrons by 24 - 12 = 12.
What is the mass number of a magnesium atom with 14 neutrons?
The mass number is the number of protons plus neutrons. Magnesium is element number 12, so it has 12 protons. Its mass number with 14 neutrons is 12 + 14 which is 26.
How many neutrons are in an atom sodium with mass number 23?
12
How many neutrons are in an atom of sodium with mass number 23?
12
What is the number of neutrons in an atom with atomic number 12 and mass number 22?
Number of neutrons = Mass number - Atomic number = 22 - 12 = 10
How many protons and neutrons does a carbon atom with a mass number of 12 have?
6 protons and 6 neutrons.
what is the mass of an atom with 5 protons and 7 neutrons?
To the find the mass number of an atom you add the protons and neutrons. Meaning that the mass number of this atom is 12.
How many neutrons are found in an atom of aluminum-27?
Number of neutrons = Mass number - Number of protons = 26 - 12 = 14 neutrons
