The need of the term average atomic mass. - Vidyadip

Question

The need of the term average atomic mass.

✓

Answer

Several naturally occurring elements exist as a mixture of two or more isotopes.
Isotopes have different atomic masses.
The atomic mass of such an element is the average of atomic masses of its isotopes.
For this purpose, the atomic masses of isotopes and their relative percentage abundances are considered.

Hence, the term average atomic mass is needed to express atomic mass of elements containing mixture of two or more 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 questions." from Some Basic Concepts of Chemistry→Some Basic Concepts of Chemistry — all question types→Chemistry STD 11 Science question papers→Maharashtra Board STD 11 Science question papers→Maharashtra Board question paper generator→

Similar questions

Referring the stabilty belt of stable nuclides, which nuclides are $\beta–$ and $\beta+$ emitters ? Why ?

Explain the terms:
i. Valency of an element
ii. Oxidation state (or oxidation number)
iii. Chemical reactivity

Explain catalytic selectivity with suitable examples.

Write a short note on
a. Vapour pressure.
b. Surface tension
c. Viscosity.

Describe classification of colloids based on the interaction or affinity of phases.

What is $\beta^– –$ decay? Also explain the changes that occur in the parent nuclei due to $\beta-$emission with one example.

i. Draw the structural formula of ethane.
ii. Draw electron-dot structure of propane.

Explain : mechnism of cleansing Action of soap with flow chart.

Express the following sum to appropriate number of significant figures:
a. $2.3 \times 10^3 mL+4.22 \times 10^4 mL+9.04 \times 10^3 mL+8.71 \times 10^5 mL$;
b. $319.5 g-20460 g-0.0639 g-45.642 g-4.173 g$

Calculate the oxidation number of underlined atoms.
a. $H_2SO_4$
b. $HNO_3$
c. $H_3PO_3$
d. $K_2C_2O_4$
e. $H_2S_4O_6$
f. $Cr_2O_7^{2-}$
g. $NaH_2PO_4$