I would say that the answer is D.
Answer:
Atomic number: 13
Electron Configuration:[NE] 3s²3p¹
Valence electron: 3
Answer:
Explanation:
Based on what is known about the fetal skeleton and the ossification process it can be said that this occurs due to babies having more of the osteoblasts bone cells. These cell's main function is to lay down new bone material, this therefore creates a thicker harder bone which allows for proper support so that the body can continue growing and become stronger overall.