A mental health disorder characterised by persistently depressed mood or loss of interest in activities, causing significant impairment in daily life.
Possible causes include a combination of biological, psychological and social sources of distress. Increasingly, research suggests that these factors may cause changes in brain function, including altered activity of certain neural circuits in the brain. .
Answers & Comments
k shell 2 electrons
l shell. 8 electrons
M shell 18 electrons
n shell 32 electrons
outer most shell must be 8 or required electrons such M 18 or n shell 32
if an element occurred stable
the electrons needed to an element to become stable or octet configuration is called valency of an element
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Answer:
A mental health disorder characterised by persistently depressed mood or loss of interest in activities, causing significant impairment in daily life.
Possible causes include a combination of biological, psychological and social sources of distress. Increasingly, research suggests that these factors may cause changes in brain function, including altered activity of certain neural circuits in the brain. .
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Explanation:
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