3
Based on the atomic number of lithium there are three protons in a lithium atom.
Protons- 3Electrons- 3Neutrons- 4
3
An atom's atomic number tells us its number of protons. Lithium's atomic number is 3. Thus lithium has 3 protons per atom.
Lithium is an element with 3 protons in each atom.
As you can see in any periodic table, Lithium is element #3; that means that each atom has 3 protons.
Lithium has the atomic number of 3, which means it has 3 protons, and a neutral atom of lithium has 3 electrons.
In a neutral atom of lithium-7, the number of protons equals the number of electrons. The atomic number of lithium is 3, which is the number of protons. So a neutral atom of lithium-7 has 3 protons and 3 electrons.
Boron has more protons. It has 5, lithium has 3.
Neutrally charged, 3
3three
An atom of lithium isotope 6Li has 3 electrons and 3 protons and 3 neutrons.