Atomic Number 25



  1. Helium
  2. Beryllium
  3. Atomic Number 253
  4. Atomic Number 26
  5. Atomic Number 25 How Many Neutrons

An atom has a mass number of 25 and 13 neutrons. What is the atomic number of this atom?

1 Answer

The atomic number of an element is equal to the total number of protons in the nucleus of the atoms of that element. The atomic number can provide insight into the electronic configuration of the element. For example, carbon has an electron configuration of He 2s 2 2p 2, since its atomic number is 6. The nucleous of the element having atomic number 25 and atomic weight 55 will contain 1)25 Protons and 30 Neutrons 2)25 Neutrons and 30 Protons 3)55 Protons 4)55 Neutrons which one option is correct of the above question?? And explain the answer. Manganese (Mn) is a grey white metal that has the atomic number 25 in the periodic table. It is a Transition metal and located in Group 7 of the periodic table. It has the symbol Mn. Given- The atomic number of the atom is 25 Refer to the periodic table and obtained the chemical element as Manganese (Mn) corresponding to the.

Helium

Atomic mass: The mass of an atom is primarily determined by the number of protons and neutrons in its nucleus. Atomic mass is measured in Atomic Mass Units (amu) which are scaled relative to carbon, 12 C, that is taken as a standard element with an atomic mass of 12.

The atomic number is #12#, which is the atomic number for magnesium.

Explanation:

Beryllium

The mass number of an isotope is the sum of the protons and neutrons in its atomic nuclei.

If we know the mass number #('A')# and the number of neutrons #('N')#, we can calculate the atomic number #('Z')# by subtracting the number of neutrons from the mass number.

Atomic Number 25

#'A'-'N'='Z'#

#25-13=12#

Atomic Number 253

The atomic number of the element is #12#. Atomic number is the number of protons in the nuclei of all atoms of an element. The element with the atomic number 12 is magnesium.

Atomic Number 26

This is #'^25'Mg'#, or magnesium-25, which can be abbreviated as Mg-25.

Atomic Number 25 How Many Neutrons

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