There are 2 electrons in the Lithium ion (Li⁺)
Further explanation
The periodic system of elements is an arrangement of elements classified based on similar properties and their atomic number order.
The periodic system is divided into groups (vertical order) and periods (horizontal order)
Each element has an electron configuration.
Determination of electron configurations based on principles:
Hund's Rule, Aufbau's Principle, and the Pauli-exclusion principle.
The Atomic Number (Z) indicates the number of protons in an atom of an element. If the atom is neutral then the number of protons will be equal to the number of electrons. So the atomic number can also indicate the number of electrons.
Atoms have different stability. Unstable atomic atoms will try to form stable electron configurations like those of noble gases. Where noble gases have the number of outer electrons 2 or 8
Lithium is located in group 1A and period 2
Lithium has an atomic number of 3
So it has the number of protons = the number of electrons = 3
electron configuration Li: 1s² 2s¹ or [He] 2s¹
To achieve stability like the noble gas element He, then Lithium will release 1 electron to form a Lithium ion which is the cation Li⁺
So that in this Lithium ion there are 2 electrons
Learn more
electron configurations using the Aufbau rule
https://brainly.ph/question/1129723
the reactivity of element
https://brainly.ph/question/505365
non metals element
https://brainly.ph/question/33505
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