Question

image of a skeleton in since lab please click photos and answer​

Answer 1

Explanation:

So according to this the element must be in period 4th period because it is having valence electrons in 4s. So the element with atomic no. 19 is in group 1st and period 4th.

Answer 2

Answer:

The skeletal system in an adult body is made up of 206 individual bones. These bones are arranged into two major divisions: the axial skeleton and the appendicular skeleton. The axial skeleton runs along the body’s midline axis and is made up of 80 bones in the following regions:

Skull

Hyoid

Auditory ossicles

Ribs

Sternum

Vertebral column

The appendicular skeleton is made up of 126 bones in the folowing regions:

Upper limbs

Lower limbs

Pelvic girdle

Pectoral (shoulder) girdle