Question

the description of atomic particles of two elements X and Y is given below
X-protons=8,neutrons=8,electrons=8
Y-protons=8,neutrons=9,electrons=8
1)what is the atomic number of X?
2)what is the mass number of Y?
3)what is the relation between X and Y?
4)write the electronic configuration of x?
5)what is its valency?

Answer 1

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1) 8
2)17
3)isotopes
4)2,6
5)2
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done..

Answer 2

heyaaa......

here's your ans.......
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1)atomic no.of x is 8.
2) mass no of y is 17
3) x and y are isotopes of each other.
4) electronic configuration = 2,6
5) valency = 2
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Hope this helps