Download App

Structure of the Atom — Science STD 9 — Question

Gujarat BoardEnglish MediumSTD 9ScienceStructure of the Atom1 Mark
Question
If an element M has mass number 24 and atomic number 12, how many neutrons does its atom contain?
✓

Answer

No. of neutrons = Mass No. - Atomic no.
= 24 - 12
= 12

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "One word answer." from Structure of the Atom→Structure of the Atom — all question types→Science STD 9 question papers→Gujarat Board STD 9 question papers→Gujarat Board question paper generator→

Similar questions

If an atom of an element has atomic number = 15 and, mass number = 31, find the number of protons, electrons, neutrons in its atoms.
→
Give one similarity and one difference between a pair of isotopes.
→
Which shell of an atom can accommodate a maximum of:
  1. 8 electrons?
  2. 32 electrons?
→
Name the shell of an atom which can accommodate a maximum of:
  1. 2 electrons.
  2. 18 electrons.
→
What is upthrust?
→

Who is father of green revolution in India?

→
A cell converts one form of energy into another form. Name the two forms.
→

Name one inorganic nitrogenous fertilizer.

→
Write down the names of compounds represented by the following formulae:
KNO3
→
Name the disease of cow in which high fever, excessive salivation and lesions of mouth occur.
→