Saved Bookmarks
| 1. |
An atom of an element is symbolized as zX^A. Find the mass number of the scope of theelement which has two excess neutrons |
|
Answer» Answer: The mass number is DEFINED as the TOTAL number of protons and neutrons in an atom. CONSIDER Table below which shows DATA from the first six elements of the periodic table. Consider the element helium. Its atomic number is 2, so it has two protons in its nucleus. |
|