Home
Class 11
CHEMISTRY
The number of electrons and neutrons of ...

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

A

2

B

17

C

37

D

38

Text Solution

Verified by Experts

Mass number = No. of protons + No. of neutrons `= 18 + 20 = 38`
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • STRUCTURE OF ATOM

    OMEGA PUBLICATION|Exercise MULTIPLE CHOICE QUESTIONS (MCQ s) |29 Videos

  • STATES OF MATTER

    OMEGA PUBLICATION|Exercise Multiple Choice Questions (MCQs) |29 Videos

  • THE P-BLOCK ELEMENTS

    OMEGA PUBLICATION|Exercise MULTIPLE CHOICE QUESTIONS (MCQs)|28 Videos

Similar Questions

Explore conceptually related problems

The number of electrons in the atom of an element X is 15 and the number of neutrons is 16. Give representation of an atom of this element ?

Find number of electrons , protons and neutrons if mass number is 56 and atomic number is 26.

Define mass number of an element.

Find the number of neutrons in deuterium .

Find the number of neutron and number of prorton if the element have number of electron 13 and mass number 27.

Calculate the number of electron, proton and neutron in sulphate ion .

Calculate the number of electrons , protons and neutrons in sulphur.

Give the number of neutrons in deuterium and tritium.

What is the number of valence electrons in the atoms of an element having atomic number 13 ? Name the valence shell of this atom.

Calculate the number of electron, proton and neutron in carbonate ion .

Home
Profile