MCQ
The mass number is same as __________.
- AAtomic mass number.
- BMolecular mass number.
- CBoth a and b.
- DNone of the above.
✓
Answer
- Atomic mass number.
Explanation:
The mass number should also not be confused with the relative atomic mass (also called atomic weight) of an element, which is the ratio of the average atomic mass of the different isotopes of that element (weighted by abundance) to the unified atomic mass unit.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Which of the following statements is false?
Arrange the Carbocations in decreasing order of stability
The density of water is $1\, g/mL$. What is the volume occupied by $1$ molecule of water :-
→Which of the following is false of a binary solution showing false deviation from Roult's law?
In ferrous ammonium sulphate oxidation number of $Fe$ is
→For the reaction
→$H _{2} F _{2( g )} \rightarrow H _{2( g )}+ F _{2( g )}$
$\Delta U =-59.6\,kJ\,mol ^{-1} \text { at } 27^{\circ}\,C$.
The enthalpy change for the above reaction is (-) $kJ mol ^{-1}$ [nearest integer] Given : $R =8.314\,JK ^{-1}\,mol ^{-1}$
The amount of energy which is released due to addition of extra electron to the outermost orbit of gaseous atom is called
From the ground state electronic configuration of the elements given below, pick up the one with highest value of second ionisation energy.
Which of the following information can be obtained on the basis of Le-chatelier's principle
The hybrdization of $I{F_7}$ is
→