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How many neutrons does nobelium have?
157; you figure that out by taking the atomic mass (259) and subtract it by the # of protons (102) and the answer is the # of neutrons. ( the atomic #, # of protons, and # of electrons are always the same # 102 ). But each isotope of nobelium has a different number of neutrons, depending on the atomic mass.
What element has twelve neutrons and eleven electrons and is a metallic?
sodium
What is the charge of an atom with twelve electrons and ten protons?
-2
How many baryons does Sodium have?
Sodium is not a subatomic particle, but an element in the Periodic Table. Like it's fellow elements, a Sodium atom is composed of a central clump of baryons known as the nucleus, and a surrounding cloud of small particles called electrons. The nucleus is composed of two types of baryons, protons and neutrons. In all isotopes of Sodium, there are eleven protons in the nucleus. There is only one stable isotope of Sodium, Na23 in which there are twelve neutrons. Eleven protons and twelve neutrons totals 23 baryons.
If an atom has 12 protons in the nucleus, then it must also have?
Twelve electrons
Why is the atomic mass for carbon twelve?
Carbon's predominant stable isotope has 6 protons and 6 neutrons for a total of 12 "nucleons" (particles in the nucleus). The actual atomic mass would include small fractional values for the electrons.
What is the atomic number of an atom with eleven protons and twelve neutrons?
Atomic numbers of atoms always measured by their proton units. Atomic number is equal to proton number. So its is eleven
How many neutrons are in atom of sodium?
A sodium atom typically has 12 neutrons. This is because the atomic number of sodium is 11, which represents the number of protons in the nucleus. The total mass number of sodium is around 23, so subtracting the atomic number from the mass number gives us the number of neutrons.
Neon-22 contaiuns 12 neutron it also contains?
Neon-22 contains 12 neutron and it also contain 10 protons.
How many protons are in manganese?
Many atoms have many different isotopes, and each isotope has a different number of neutrons. Mn only has 1 stable isotope, which is 55 atomic mass. It is atomic number 25 and thus has 30 neutrons.
What atoms have twelve protons?
Magnesium is atomnumber 12 with 12 protons.
What element has twelve neutrons?
Sodium. Symbol: Na
