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Mass of total positive charge present in an atom in the 16533 times to that of mass of electron find the atomic number of this element

Mass of total positive charge present in an atom in the 16533 times to that of mass of electron find the atomic number of this element

Grade:9

1 Answers

MANSI
11 Points
2 months ago
We know that mass of a proton is 1837 times that of an electron.
∴ Atomic number of element =551101837=30
∴ Electronic configuration of the element is 2 , 8 , 18 , 2.
I HAVE DIFFERENT ANSWERS THIS WAS ONE.
NEXT ONE IS,

2, 8 , 9 , 2

2 , 8 , 18 , 1

2, 8 , 18 , 2

2 , 8 , 8 2

Answer :

3

Solution :

We know that mass of a proton is 1837 times that of an electron.

∴ Atomic number of element =551101837=30

∴ Electronic configuration of the element is 2 , 8 , 18 , 2

OKAY

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