1 Answer

MoustafaS · Answer 1 · 2023-04-20T01:32:59+0000

Answer:

1. Cobalt,Calcium,strontium

2.Elements in the same period generally have the same number of electron shells in the outermost energy level.
3.elements in the same period are chemically different.

Step-by-step explanation:

0 Comments

Please log in or register to add a comment.

Please log in or register to answer this question.

1 Answer

0 Comments

Please log in or register to add a comment.

No related questions found

Other Questions