The number of covalent bonds that an atom tends to form is equal to the number of valence electrons.
Explanation:
Covalent bonds are formed between non-metals by sharing of the equal number of valence electrons between the two atoms. The valence electrons are the number of electrons in the outermost shell of the atom. These valence electrons share between the atoms and from bonds. eg. are NH3 and H2.
The sharing of valence electrons complete the octet rule and covalent bonds are formed.
What are the following questions?
Has increased dramatically. this because industrialization has resulted in released of global warming gases that have consequently led to global warming i.e increase in temperature to the levels that some species cannot survive. in addition industrialization has led to increased demand of energy which has led to mining of energy sources such as coal. this mining has resulted to destruction of habitat of some animals and and plants leading to extinction of some.
Answer: Hyponatremia(low serum sodium level)
Explanation:
This is a condition where the sodium serum Level drops to less than 136mEqL.Sodium regulates electrolyte water balance of the body by regulating the amount of water that enter the cells.Therefore when it level drops water concentration rises increasing the water potential surrounding the cells(extracellular) but not of the intacellular fluids
.Less water is reabsorbed in the proximal convoluted tubule(PCT) of tthe Nephon. Since low sodium is available little will be reabsorbed by the PCT for reabsorption of water.
it is cause by liver diseases,diarrhoea, intake of large or too much water,hormonal imbalances etc
Symptoms
Headache, confusion, nausea, vomiting.and coma.
Treatment.
Controlled or moderate water intake
Treatment of related diseases.
Necessary precautions during intense activities.
