In an atom whose core contains 16 neutrons possess a total electrical charge q=+2,56x10in force -18
1. What is the atomic number of the atom?
2.What is the number of nucleons(mass)?
3.How much electrons has in electronic mantle?
To answer these questions, we need to understand some basic atomic properties and equations.
1. The atomic number of an atom corresponds to the number of protons in its nucleus. Since the electrical charge of an atom is given, we can calculate the number of protons using the formula q = Ze, where q is the total electrical charge and e is the elementary charge (1.602 x 10^-19 C).
In this case, q = +2.56 x 10^-18 C, so the formula becomes:
2.56 x 10^-18 C = Z * (1.602 x 10^-19 C)
Solving for Z (the atomic number), we find:
Z = (2.56 x 10^-18 C) / (1.602 x 10^-19 C) ≈ 16
Thus, the atomic number of the atom is 16.
2. The number of nucleons in the atom corresponds to the total number of protons and neutrons in the nucleus. Since the core of the atom contains 16 neutrons, the number of nucleons can be calculated as the sum of the protons and neutrons.
Thus, the number of nucleons (mass number) in this atom is 16 (number of protons) + 16 (number of neutrons) = 32.
3. The number of electrons in the electronic mantle (valence shell) of an atom can be found by subtracting the atomic number from the nearest noble gas electron configuration. Noble gases have completely filled electron shells, so they are stable. For the atom with an atomic number of 16, the nearest noble gas is sulfur (S) with an electron configuration of [2, 8, 6].
To determine the number of electrons in the valence shell, we subtract the completed shells from the number of electrons in the atom:
Number of valence electrons = Atomic number - Number of core electrons
= 16 - (2 + 8)
= 6
Therefore, the atom has 6 electrons in its valence shell.