Saved Bookmarks
| 1. |
Observe the given table and answer the following question:ElementsABCDEAtomic number1142719Identify the two elements that belong to the same period and the two elements that belong to the same group. Give reason for your conclusion. |
|
Answer» (i) Element B and element D are in same period because their atoms have two shells. (ii) Element A and element E are in the same, group because their outermost shell has one electron. |
|