In small amounts it is not, for example there is chlorine in pools to keep it clean but there is only a small amount. Too much chlorine is dangerouse for humans.
Chlorine is generally not used as an antiseptic in medicine because it is highly toxic to humans. Even if not fatal, inhaling chlorine can cause severe lung damage. So it is to dangerous to use chlorine for such purposes.
Elemental chlorine is caustic and toxic. Humans can safely consume chemical compounds which contain chlorine atoms, such as salt, but not elemental chlorine.
Sodium is dangerous because it is an Alkali metal which is HIGHLY reactive with water. Chlorine is dangerous because it forms a strong acid with water.
As a radioactive chemical element, technetium may be dangerous to humans.
Anything over 10ppm is not good
Chlorine is generally not used as an antiseptic in medicine because it is highly toxic to humans. Even if not fatal, inhaling chlorine can cause severe lung damage. So it is to dangerous to use chlorine for such purposes.
how is this possible when pure sodium and chlorine are so dangerous
Chlorine can prevent such diseases by killing them in the water supply before they can reach humans-- it is very common for tap water to be treated at some point with chlorine in order to kill off unwanted or dangerous microorganisms.
Elemental chlorine is caustic and toxic. Humans can safely consume chemical compounds which contain chlorine atoms, such as salt, but not elemental chlorine.
Ordinary chlorine is not radioactive. Chlorine gas is highly toxic, however.
Sodium is dangerous because it is an Alkali metal which is HIGHLY reactive with water. Chlorine is dangerous because it forms a strong acid with water.
no
no I am pretty sure that they are not dangerous to humans
Not normally, but Humans are dangerous to them.
Not sure about 3 aspects, but Chlorine is very corrosive.
Yes, ammonia is poisonous to humans, but only in large quantity. When ammonia is used as a dilute solution in water (as a cleaning agent, for example) it is not dangerous. Pure ammonia is approximately as toxic as chlorine gas.
no I am pretty sure that they are not dangerous to humans