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1. lf one atom of an element contains 20 neutrons and 20 protons then what is the mass number of that atom?
a 37
b 40
By Quinn

1. lf one atom of an element contains 20 neutrons and 20 protons then what is the mass number of that atom?
a 37
b 40
c 30
d 50

2. which of the following two atoms have same mass numbers?
a Mg and Al
b Ca and Cl
c P and Ar
d Ar and Ca

please answer these questions correctly​

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Quinn

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2 thoughts on “1. lf one atom of an element contains 20 neutrons and 20 protons then what is the mass number of that atom?<br />a 37<br />b 40<br”

  1. Answer:

    1

    mass of atom is sum of neutron and proton

    so it’s mass will be 40u

    2

    Ar and Ca is the answer

    they have 40u mass

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  2. Explanation:

    Yar ek bat bole abhi question post kiye mere question hi galat hai, ham – ke jagah + kar diye, plecch kisi ko bolna mat,…✌✌☹️

    Reply

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