an element " X " has a mass number 35 and the number of neutron is 18 identify the group of number and period of "X"
Answers
Answered by
5
Hi,
Here's ur answer :-
Mass number = no.of protons + no.of neutrons
=> 35 = no.of protons + 18
=> no.of protons = 35-18=17
Thus, the number of protons, that is, the atomic number is 17.
Thus the element X is Chlorine .
HOPE IT HELPS (^_^)
Here's ur answer :-
Mass number = no.of protons + no.of neutrons
=> 35 = no.of protons + 18
=> no.of protons = 35-18=17
Thus, the number of protons, that is, the atomic number is 17.
Thus the element X is Chlorine .
HOPE IT HELPS (^_^)
Rdx11:
yes atomic no. is 17 but what is the group of number and period
Ok u r right but was the previous answer more helpful than mine?
You can search that for chlorine but you have to find for x and then do so
U have taken wrong decision to mark the other one Brainliest
Answered by
0
Answer:
We know :
Atomic number = Mass number - No. of neutrons.
Atomic number = 35 - 18
= > 17
Electronic configuration :
2 , 8 , 7
Group no. = 17
Period no. = 3
Name of element is Chlorine ( Cl ) .
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