The number of electrons and neutrons in an element are 18 and 20 respectively. Its mass number is

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Open in App

Solution

The correct option is D 38
Number of electrons = 18
Number of neutrons = 20
Atomic number =number of protons= number of electrons = 18
Number of neutrons = mass number – atomic number
So, mass number = 38

Suggest Corrections

Similar questions

An ion $X^{2 +}$ contains 18 electrons and 20 neutrons. Calculate the atomic number and mass no. of element X. Name the element X.

An ion X²⁺ contains 18 electrons and 20 neutrons. Calculate the atomic number and mass no. of element X. Name the element X.

M^{2 +}

If an atom of an element contains 17 electrons and 18 neutrons, find the number of protons, atomic number and mass number of the element.

Join BYJU'S Learning Program

Explore more

Join BYJU'S Learning Program