a element "X" has mass number 35 and the number of neutrons , is 18 identify the group number and the period of "X" (pls answer fast)....
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as no.of neurons is 18 its atomic no.is 18 so its argon of viiiA group and 3rf period of pblock elements
Shreya2002:
tysm
by the way you can also find it out by writing electronic configuration of valence shell
i ma the one who asked u for the question why r u asking me sry but idk
am*
iam notifing u an other way of doing it not asking is that correct
ohh i am sry
thank u
any way i was wrong
hmm its k
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mass no = no.of protons +no.of neutros
35=18+protons
protons = 17
electrons is also =17
the element is chlorine
so it can written as 2,8,7
it belongs to 3rd period and 17 th grp
i hope this answer was helpful to u
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35=18+protons
protons = 17
electrons is also =17
the element is chlorine
so it can written as 2,8,7
it belongs to 3rd period and 17 th grp
i hope this answer was helpful to u
mark as brainloest
tysm very usefull
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