Lithium(Li)
Based on the atomic number of lithium there are three protons in a lithium atom.
Lithium has the atomic number of 3, which means it has 3 protons, and a neutral atom of lithium has 3 electrons.
An atom of lithium isotope 6Li has 3 electrons and 3 protons and 3 neutrons.
As you already know the atom consists of protons, neutron and eletrons. The number of protons determins which chemical element it is, and on the periodic table of elements, we can see that the next element after lithium is beryllium.-An atom with 3 protons, 3 neutrons, and 3 electrons.- An atom with 3 protons, 5 neutrons, and 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.
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.
3
Protons- 3Electrons- 3Neutrons- 4
Boron has more protons. It has 5, lithium has 3.
The number of protons in the nucleus is given by the atomic number. So in your example, this would be atomic number 3 (lithium). It will have atomic mass of 7 (3 protons + 4 neutrons), and a charge of 0 since there are also 3 electrons to balance the 3 protons.
With 4 protons, 3 electrons, and 5 neutrons, this atom is an isotope of beryllium. The number of protons in an atom determines its identity, so this atom is still beryllium due to its 4 protons. The difference in neutron number makes it an isotope of beryllium.