Explanation:
Elements in same group show same valency because they have same number of electrons in ther outermost shell i.e. Valence shell. Since valency depends upon the valence electrons so they have same valency. Elements in the same group have same valancy.
Answer: but =
Explanation: their all the same
Hi! Your question was incomplete so I had to find the question online by googling it. Here are the answers:
Answer:
-Differentiation and development of all the body organs occur during the prenatal stage of life. Environmental stress during this stage predisposes the individual to disease later in adulthood.
-The postnatal stage-from infance to childhood to the juvenile period to adolescence to adulthood-involves growth acceleration and deceleration. Childhood and adolescence are long events, in which adult behaviors are learned, individuals become completely mature, and the reproductive capacity develops.
How long it stands is the independent variable
