an element "x" has mass number 35 and the number of neutron, is 18 .Identify the group number and period of "x".
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I think this element is chlorine
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Given
mass number=A= number of protons + number of neutrons =35
Number of neutron=18
So number of
Protons=35-18=17
As atom is electrically neutral
Number of electrons=17
Element x is chlorine
Electronic configuration:
1s2 2s2 2p6 3s2 3p5
Period=3
Group=17
mass number=A= number of protons + number of neutrons =35
Number of neutron=18
So number of
Protons=35-18=17
As atom is electrically neutral
Number of electrons=17
Element x is chlorine
Electronic configuration:
1s2 2s2 2p6 3s2 3p5
Period=3
Group=17
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