
Write the atomicity of the following:
(i) Sulphur
(ii) Phosphorus
Answer
438.6k+ views
Hint: The total number of atoms in a molecule is known as atomicity. The term atomicity is often used interchangeably with the term valency. It can also be measured as the ratio of molecular mass to atomic mass ratio.
Complete answer:
Now in order to calculate the atomicity we will divide the molecular mass of the atom by the atomic mass in each case.
(i) Sulphur:
The atomicity is calculated as:
Now we know that for Sulphur
Molecular mass
Atomic mass
Substituting these values we get,
(ii) Phosphorus:
The atomicity is calculated as:
Now we know that for phosphorus,
Molecular mass
Atomic mass
Substituting these values we get,
.
Note:
Atomicity of Phosphorus is half times that of Sulphur. We should also note that though valence and atomicity are similar terms but they are different. The total number of atoms in a single molecule of an element is referred to as atomicity. Whereas, The number of electrons in an element's outermost shell is referred to as valency.
Complete answer:
Now in order to calculate the atomicity we will divide the molecular mass of the atom by the atomic mass in each case.
(i) Sulphur:
The atomicity is calculated as:
Now we know that for Sulphur
Molecular mass
Atomic mass
Substituting these values we get,
(ii) Phosphorus:
The atomicity is calculated as:
Now we know that for phosphorus,
Molecular mass
Atomic mass
Substituting these values we get,
Note:
Atomicity of Phosphorus is half times that of Sulphur. We should also note that though valence and atomicity are similar terms but they are different. The total number of atoms in a single molecule of an element is referred to as atomicity. Whereas, The number of electrons in an element's outermost shell is referred to as valency.
Latest Vedantu courses for you
Grade 11 Science PCM | CBSE | SCHOOL | English
CBSE (2025-26)
School Full course for CBSE students
₹41,848 per year
Recently Updated Pages
Master Class 11 Business Studies: Engaging Questions & Answers for Success

Master Class 11 Economics: Engaging Questions & Answers for Success

Master Class 11 Accountancy: Engaging Questions & Answers for Success

Master Class 11 Computer Science: Engaging Questions & Answers for Success

Master Class 11 English: Engaging Questions & Answers for Success

Master Class 11 Maths: Engaging Questions & Answers for Success

Trending doubts
Which one is a true fish A Jellyfish B Starfish C Dogfish class 11 biology CBSE

The flightless birds Rhea Kiwi and Emu respectively class 11 biology CBSE

Difference Between Prokaryotic Cells and Eukaryotic Cells

1 ton equals to A 100 kg B 1000 kg C 10 kg D 10000 class 11 physics CBSE

One Metric ton is equal to kg A 10000 B 1000 C 100 class 11 physics CBSE

How much is 23 kg in pounds class 11 chemistry CBSE
