Question

Сколько электронов находится в электронной оболочке нейтрального атома, ядро которого состоит из семи протонов и семи нейтронов? Назовите этот элемент и укажите число нуклонов , содержащихся в ядре элемента.

Answer 1

? электронов
Азот
14 нуклонов

Answer 2

Number of Electrons in the Electron Shell

The number of electrons in the electron shell of a neutral atom is determined by the atomic number of the element. The atomic number represents the number of protons in the nucleus of an atom, which is also equal to the number of electrons in a neutral atom.

In this case, the atom has seven protons in its nucleus, so it also has seven electrons in its electron shell.

Element and Number of Nucleons

To determine the element and the number of nucleons (protons + neutrons) in the nucleus of the element, we need to know the atomic number and the atomic mass number.

The atomic number of an element is equal to the number of protons in its nucleus. In this case, the atom has seven protons, so the atomic number is 7.

The atomic mass number is the sum of the number of protons and neutrons in the nucleus. Since the atom has seven protons and seven neutrons, the atomic mass number is also 14.

Therefore, the element with a nucleus consisting of seven protons and seven neutrons is nitrogen (N), and it has 14 nucleons in its nucleus.

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