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Sagot :
4, loses an electron. a plus sign indicates an atom is losing an electron while a minus sign indicates an atom is gaining an electron
hope this helps!
hope this helps!
Answer:
(4) loses an electron
it has 3 protons and electrons, proton no. cannot change, to make lithium an ion, it needs to have an exact number of electrons so that the electronic shell can be 2, 8… something like that. So lithium atom loses an electron in order to for Li+ ion. Making the electrons to have 2 as an electronic shell.
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