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In particular, acyclovir is useful to treat Herpes zoster.
Viruses are tiny organisms that are able to cause infections in host organisms while using their machinery for replication. Antivirals need to be taken in order for stopping the growth of a virus in the body.
Acyclovir is used to treat infections that are caused by Herpes viruses. Acyclovir drug has an antiviral broadspectrum against the herpes diseases such as herpes zoster.
Herpes zoster is a viral infection that is caused by the same virus that causes chickenpox i.e varicella-zoster virus (VZV). The person sees rashes on his body along with pain in this viral attack. Acyclovir is administered to treat the Herpes zoster.
To learn more about antivirals, click here:
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Answer: B) The number of electron in its valence shell.
Explanation:
Outermost electrons of the atoms which can participate in the chemical bond formation is known as valence electrons.
Atoms either transfer or share its valence electrons during chemical bond formation. Atoms transfer or share electrons to attain octet or in other words stability.
Generally, 8 electrons are required in their outermost shell or valence shell in order to attain stability. This rule is known as octet rule.
For example, general electronic configuration of sodium belonging to group 1 is 1s2 2s2 2p6 3s1.
No. of valence electrons in Na = 1
by loosing 1 electron, its outer shell electronic configuration become = 1s2 2s2 2p6 (Octet)
Hence, sodium and other group 1 elements are very reactive.
Similarly, halogens (ns2 np5) by gaining 1 electron attain octet (ns2 np6). Hence halogens are also very reactive.
Carbon atom belonging to group 14 has 4 valence electrons (ns2 np2) and share all 4 valence electrons to attain octet and hence reactive.
Nobel gases have octet in their outermost shell (ns2 np6), hence they are most nonreactive element.
Through skin contact.
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