Download App

Structure of Atom — Chemistry STD 11 Science — Question

Maharashtra BoardEnglish MediumSTD 11 ScienceChemistryStructure of Atom2 Marks
Question
Define isotopes.
✓

Answer

Isotopes are defined as the atoms of an element having the same number ofprotons but different number of neutrons in their nuclei.
e.g. ${ }_6^{12} \mathrm{C},{ }_6^{13} \mathrm{C}$ and ${ }_6^{14} \mathrm{Br}$ are isotopes.

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 "Answer the following in one or two sentences." from Structure of Atom→Structure of Atom — all question types→Chemistry STD 11 Science question papers→Maharashtra Board STD 11 Science question papers→Maharashtra Board question paper generator→

Similar questions

Give the type of overlap by which pi (π) bond is formed.
→
How are the equilibrium constants of the following pair of equilibrium reactions related?
i. $\quad CO _{2(g)}+ N _{2(g)} \stackrel{ K _C}{\rightleftharpoons} CO _{( g )}+ N _2 O _{( g )}$
ii. $\quad CO _{( g )}+ N _2 O _{( g )} \stackrel{ K _{ C }^{\prime}}{\rightleftharpoons} CO _{2( g )}+ N _{2( g )}$
→
Write the increasing order of energies of molecular orbitals in various diatomic molecules of second row elements.
→
What is the smallest unit of matter?
→
How is molecular mass of a substance calculated? Give example.
→
Predict the products when ethyne and propyne are treated with $1 \%$ mercuric sulphate in $H _2 SO _4$.
→
How electrophilic or nucleophilic centre is generated in a neutral substrate?
→
State the rules used to round off a number to the required number of significant figures.
→
The mass of an atom of one carbon atom is 12.011 u. What is the mass of 20 atoms of the same isotope?
→
Give an example of detergent used as:
i. Additive in toothpaste
ii. Used as germicide
→