Chemistry, asked by promilachhetri, 3 months ago

1.An element has atomic number 19 and mass number 39. How many electrons and protons are present in its unipositive ion ? Give the nuclear composition of 1808 .
2.the mass number and atomic number of an element is 23and 11 respectively .what is the number of nucleons present in it?

Answers

Answered by kumarkhushwant98

1

Explanation:

No. of Neutrons = Mass No. - Atomic No

= 39 - 19

=20

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