Question

A lithium atom contains 3 protons, 4 neutrons and 3 electrons. What would be formed if one proton is added to this atom?
a. a lithium ion
b. a different isotope of lithium
c. a beryllium ion
d. a neutral atom of beryllium

Answer 1

I think the correct answer would be option C. Adding one proton to an atom of lithium with 3 protons, 4 neutrons and 3 electrons would form a beryllium ion. The new atom have 4 protons and 4 neutrons since Be has a mass number of 9 then it has to form an ion.

Answer 2

A beryllium ion will be formed if one proton is added to a lithium atom that contains 3 protons, 4 neutrons and 3 electrons.

PROTON NUMBER:

• Proton, electron and neutron are the three subatomic particles contained in the atom of an element.

• The proton represents the positively charged component while the electron is the negatively charged component. This means that the proton and electron number determines the charge of an atom.

• The number of protons in the atom of an element is the atomic number of that element.

• A lithium atom is said to contain 3 protons, 4 neutrons and 3 electrons. This means that the atomic number of Li atom is 3.

• If one proton is added to this Li atom, the atomic number will change to 4, which is the atomic number of Beryllium element, however, the number of electrons in the Beryllium atom is higher than that of protons, hence, a charge is formed.

• Therefore, beryllium ion will be formed if one proton is added to a lithium atom that contains 3 protons, 4 neutrons and 3 electrons.

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