McqMate
| Q. |
The mass number of a nucleus is – |
| A. | always less than its atomic number |
| B. | always more than its atomic number |
| C. | always equal to its atomic number |
| D. | sometimes more - and somtimes equal to its atomic number |
| Answer» D. sometimes more - and somtimes equal to its atomic number | |
|
Explanation: Mass number = protons or mass of electron (atomic number) + neutrons. So it is mostly greater than the atomic number. At best, it can be equal to the atomic number. |
|
View all MCQs in
ChemistryNo comments yet