Determine the number of charges of all electrons and protons in the lithium atom.
| February 19, 2021 | education
In Mendeleev’s periodic system, lithium is numbered 3. Therefore, its nucleus contains three protons and has a positive charge equal to three elementary electric charges. In addition to protons, the nuclei of stable lithium isotopes have 3 or 4 neutrons.
The electron shell of lithium consists of three electrons. The total negative charge of electrons is also equal to three elementary electric charges.
In general, the atom is electrically neutral.
Answer: The lithium atom contains 6 charged particles – three protons in the nucleus and three electrons in the electron shell.
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