3
As you can see in any periodic table, Lithium is element #3; that means that each atom has 3 protons.
2
In an ion your protons do not change it will always stay the same. So in this case Lithium would hae three protons
Lithium ion is Li^1+ and the number of protons is 3 and the number of electrons is 2.
All lithium atoms (ions or neutral) have 3 protons.
3 protons and 2 electrons.
Yes, the number of protons in an atom and its ion of lithium is the same. Lithium always has 3 protons in its nucleus, regardless of whether it is in its neutral atom form (Li) or as an ion with a different number of electrons.
The lithium ion is essentially the same as the lithium atom, except it has lost 1 electrons. The number of protons and neutrons remain the same. Thus, the lithium ion, Li+ has 3 neutrons, just like the lithium atom.
All lithium atoms and ions have three protons. The lithium ion has a charge of +1, meaning there is one less electron than protons, two.
When you say Ion you have to specify whether its negative or positive and the number associated with it. For example: if its Li 3- it means it has 3 more electrons then regular Lithium (which has 3 electrons) that makes it 6 electrons and 3 protons (this nr doesnt change) for Li 3-. Obviously calculations vary depending on the type of ion.
A neutral lithium atom has 3 electrons, the same as the number of protons, which is the atomic number of lithium. There is no lithium ion with a charge of 7+. If you mean lithium with a mass number of 7, the number of protons is 3 and the number of neutrons is 4.
When a lithium atom changes into an ion, the ion is positive. This is because lithium, which has 3 protons and 3 electrons in its neutral state, loses an electron to become Li+, resulting in an ion with 3 protons and only 2 electrons, giving it a net positive charge.