What will be the mass number of the element whose atom has three protons and four neutrons?

Open in App

Solution

The above mentioned element is ${}_{3}^{7}{Li}$ , which has 3 protons and 4 neutrons.
Mass number = Number of protons + Number of neutrons= 3+4 = 7.
Therefore, seven is the answer.

Suggest Corrections

Similar questions

What will be the valency of the element whose atom has three protons and four neutrons?

The atom of an element has $9$ protons and $9$ electrons and $10$ neutrons. What is the atomic number of the element?

The nucleus of an atom has 5 protons and 6 neutrons. What would be the (a) atomic number, (b) mass number, (c) the number of electrons, and (d) the number of valence electrons, per atom of this element?

The element sulphur has atomic number 16 and mass number 32. Calculate the number of electrons, protons, and neutrons in the ion formed. Represent the ion. What will be its valency?

Q. An element X has number of protons = 4. What will be its mass number if it has 3 neutrons?

Join BYJU'S Learning Program

What will be the mass number of the element whose atom has three protons and four neutrons?

The above mentioned element is Li37, which has 3 protons and 4 neutrons.Mass number = Number of protons + Number of neutrons= 3+4 = 7.Therefore, seven is the answer.

The above mentioned element is ${}_{3}^{7}{Li}$ , which has 3 protons and 4 neutrons.
Mass number = Number of protons + Number of neutrons= 3+4 = 7.
Therefore, seven is the answer.